Merge branch 'master' into upstream

Documentation/cpu-freq/user-guide.txt

@@ -153,10 +153,13 @@ scaling_governor,		and by "echoing" the name of another
 				that some governors won't load - they only
 				work on some specific architectures or
 				processors.
-scaling_min_freq and 
+scaling_min_freq and
 scaling_max_freq		show the current "policy limits" (in
 				kHz). By echoing new values into these
 				files, you can change these limits.
+				NOTE: when setting a policy you need to
+				first set scaling_max_freq, then
+				scaling_min_freq.
 
 
 If you have selected the "userspace" governor which allows you to

Documentation/sysctl/kernel.txt

@@ -211,9 +211,8 @@ Controls the kernel's behaviour when an oops or BUG is encountered.
 
 0: try to continue operation
 
-1: delay a few seconds (to give klogd time to record the oops output) and
-   then panic.  If the `panic' sysctl is also non-zero then the machine will
-   be rebooted.
+1: panic immediatly.  If the `panic' sysctl is also non-zero then the
+   machine will be rebooted.
 
 ==============================================================
 

MAINTAINERS

@@ -298,6 +298,13 @@ L:	info-linux@geode.amd.com
 W:	http://www.amd.com/us-en/ConnectivitySolutions/TechnicalResources/0,,50_2334_2452_11363,00.html
 S:	Supported
 
+AOA (Apple Onboard Audio) ALSA DRIVER
+P:	Johannes Berg
+M:	johannes@sipsolutions.net
+L:	linuxppc-dev@ozlabs.org
+L:	alsa-devel@alsa-project.org
+S:	Maintained
+
 APM DRIVER
 P:	Stephen Rothwell
 M:	sfr@canb.auug.org.au
@@ -2659,6 +2666,14 @@ M:	dbrownell@users.sourceforge.net
 L:	spi-devel-general@lists.sourceforge.net
 S:	Maintained
 
+STABLE BRANCH:
+P:	Greg Kroah-Hartman
+M:	greg@kroah.com
+P:	Chris Wright
+M:	chrisw@sous-sol.org
+L:	stable@kernel.org
+S:	Maintained
+
 TPM DEVICE DRIVER
 P:	Kylene Hall
 M:	kjhall@us.ibm.com

Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 18
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc4
 NAME=Crazed Snow-Weasel
 
 # *DOCUMENTATION*

arch/i386/kernel/cpu/cpufreq/Kconfig

@@ -96,6 +96,7 @@ config X86_POWERNOW_K8_ACPI
 
 config X86_GX_SUSPMOD
 	tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation"
+	depends on PCI
 	help
 	 This add the CPUFreq driver for NatSemi Geode processors which
 	 support suspend modulation.
@@ -202,7 +203,7 @@ config X86_LONGRUN
 config X86_LONGHAUL
 	tristate "VIA Cyrix III Longhaul"
 	select CPU_FREQ_TABLE
-	depends on BROKEN
+	depends on ACPI_PROCESSOR
 	help
 	  This adds the CPUFreq driver for VIA Samuel/CyrixIII,
 	  VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T

arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c

@@ -384,8 +384,7 @@ static int acpi_cpufreq_early_init_acpi(void)
 	}
 
 	/* Do initialization in ACPI core */
-	acpi_processor_preregister_performance(acpi_perf_data);
-	return 0;
+	return acpi_processor_preregister_performance(acpi_perf_data);
 }
 
 static int

arch/i386/kernel/cpu/cpufreq/longhaul.c

@@ -29,11 +29,13 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/string.h>
-#include <linux/pci.h>
 
 #include <asm/msr.h>
 #include <asm/timex.h>
 #include <asm/io.h>
+#include <asm/acpi.h>
+#include <linux/acpi.h>
+#include <acpi/processor.h>
 
 #include "longhaul.h"
 
@@ -56,6 +58,8 @@ static int minvid, maxvid;
 static unsigned int minmult, maxmult;
 static int can_scale_voltage;
 static int vrmrev;
+static struct acpi_processor *pr = NULL;
+static struct acpi_processor_cx *cx = NULL;
 
 /* Module parameters */
 static int dont_scale_voltage;
@@ -118,84 +122,65 @@ static int longhaul_get_cpu_mult(void)
 	return eblcr_table[invalue];
 }
 
+/* For processor with BCR2 MSR */
 
-static void do_powersaver(union msr_longhaul *longhaul,
-			unsigned int clock_ratio_index)
+static void do_longhaul1(int cx_address, unsigned int clock_ratio_index)
 {
-	struct pci_dev *dev;
-	unsigned long flags;
-	unsigned int tmp_mask;
-	int version;
-	int i;
-	u16 pci_cmd;
-	u16 cmd_state[64];
+	union msr_bcr2 bcr2;
+	u32 t;
 
-	switch (cpu_model) {
-	case CPU_EZRA_T:
-		version = 3;
-		break;
-	case CPU_NEHEMIAH:
-		version = 0xf;
-		break;
-	default:
-		return;
-	}
-
-	rdmsrl(MSR_VIA_LONGHAUL, longhaul->val);
-	longhaul->bits.SoftBusRatio = clock_ratio_index & 0xf;
-	longhaul->bits.SoftBusRatio4 = (clock_ratio_index & 0x10) >> 4;
-	longhaul->bits.EnableSoftBusRatio = 1;
-	longhaul->bits.RevisionKey = 0;
-
-	preempt_disable();
-	local_irq_save(flags);
-
-	/*
-	 * get current pci bus master state for all devices
-	 * and clear bus master bit
-	 */
-	dev = NULL;
-	i = 0;
-	do {
-		dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev);
-		if (dev != NULL) {
-			pci_read_config_word(dev, PCI_COMMAND, &pci_cmd);
-			cmd_state[i++] = pci_cmd;
-			pci_cmd &= ~PCI_COMMAND_MASTER;
-			pci_write_config_word(dev, PCI_COMMAND, pci_cmd);
-		}
-	} while (dev != NULL);
-
-	tmp_mask=inb(0x21);	/* works on C3. save mask. */
-	outb(0xFE,0x21);	/* TMR0 only */
-	outb(0xFF,0x80);	/* delay */
+	rdmsrl(MSR_VIA_BCR2, bcr2.val);
+	/* Enable software clock multiplier */
+	bcr2.bits.ESOFTBF = 1;
+	bcr2.bits.CLOCKMUL = clock_ratio_index;
 
+	/* Sync to timer tick */
 	safe_halt();
-	wrmsrl(MSR_VIA_LONGHAUL, longhaul->val);
-	halt();
+	ACPI_FLUSH_CPU_CACHE();
+	/* Change frequency on next halt or sleep */
+	wrmsrl(MSR_VIA_BCR2, bcr2.val);
+	/* Invoke C3 */
+	inb(cx_address);
+	/* Dummy op - must do something useless after P_LVL3 read */
+	t = inl(acpi_fadt.xpm_tmr_blk.address);
 
+	/* Disable software clock multiplier */
 	local_irq_disable();
+	rdmsrl(MSR_VIA_BCR2, bcr2.val);
+	bcr2.bits.ESOFTBF = 0;
+	wrmsrl(MSR_VIA_BCR2, bcr2.val);
+}
 
-	outb(tmp_mask,0x21);	/* restore mask */
+/* For processor with Longhaul MSR */
 
-	/* restore pci bus master state for all devices */
-	dev = NULL;
-	i = 0;
-	do {
-		dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev);
-		if (dev != NULL) {
-			pci_cmd = cmd_state[i++];
-			pci_write_config_byte(dev, PCI_COMMAND, pci_cmd);
-		}
-	} while (dev != NULL);
-	local_irq_restore(flags);
-	preempt_enable();
+static void do_powersaver(int cx_address, unsigned int clock_ratio_index)
+{
+	union msr_longhaul longhaul;
+	u32 t;
 
-	/* disable bus ratio bit */
-	rdmsrl(MSR_VIA_LONGHAUL, longhaul->val);
-	longhaul->bits.EnableSoftBusRatio = 0;
-	longhaul->bits.RevisionKey = version;
-	wrmsrl(MSR_VIA_LONGHAUL, longhaul->val);
+	rdmsrl(MSR_VIA_LONGHAUL, longhaul.val);
+	longhaul.bits.RevisionKey = longhaul.bits.RevisionID;
+	longhaul.bits.SoftBusRatio = clock_ratio_index & 0xf;
+	longhaul.bits.SoftBusRatio4 = (clock_ratio_index & 0x10) >> 4;
+	longhaul.bits.EnableSoftBusRatio = 1;
+
+	/* Sync to timer tick */
+	safe_halt();
+	ACPI_FLUSH_CPU_CACHE();
+	/* Change frequency on next halt or sleep */
+	wrmsrl(MSR_VIA_LONGHAUL, longhaul.val);
+	/* Invoke C3 */
+	inb(cx_address);
+	/* Dummy op - must do something useless after P_LVL3 read */
+	t = inl(acpi_fadt.xpm_tmr_blk.address);
+
+	/* Disable bus ratio bit */
+	local_irq_disable();
+	longhaul.bits.RevisionKey = longhaul.bits.RevisionID;
+	longhaul.bits.EnableSoftBusRatio = 0;
+	longhaul.bits.EnableSoftBSEL = 0;
+	longhaul.bits.EnableSoftVID = 0;
+	wrmsrl(MSR_VIA_LONGHAUL, longhaul.val);
 }
 
 /**
@@ -209,9 +194,9 @@ static void longhaul_setstate(unsigned int clock_ratio_index)
 {
 	int speed, mult;
 	struct cpufreq_freqs freqs;
-	union msr_longhaul longhaul;
-	union msr_bcr2 bcr2;
 	static unsigned int old_ratio=-1;
+	unsigned long flags;
+	unsigned int pic1_mask, pic2_mask;
 
 	if (old_ratio == clock_ratio_index)
 		return;
@@ -234,6 +219,20 @@ static void longhaul_setstate(unsigned int clock_ratio_index)
 	dprintk ("Setting to FSB:%dMHz Mult:%d.%dx (%s)\n",
 			fsb, mult/10, mult%10, print_speed(speed/1000));
 
+	preempt_disable();
+	local_irq_save(flags);
+
+	pic2_mask = inb(0xA1);
+	pic1_mask = inb(0x21);	/* works on C3. save mask. */
+	outb(0xFF,0xA1);	/* Overkill */
+	outb(0xFE,0x21);	/* TMR0 only */
+
+	/* Disable bus master arbitration */
+	if (pr->flags.bm_check) {
+		acpi_set_register(ACPI_BITREG_ARB_DISABLE, 1,
+				  ACPI_MTX_DO_NOT_LOCK);
+	}
+
 	switch (longhaul_version) {
 
 	/*
@@ -245,20 +244,7 @@ static void longhaul_setstate(unsigned int clock_ratio_index)
 	 */
 	case TYPE_LONGHAUL_V1:
 	case TYPE_LONGHAUL_V2:
-		rdmsrl (MSR_VIA_BCR2, bcr2.val);
-		/* Enable software clock multiplier */
-		bcr2.bits.ESOFTBF = 1;
-		bcr2.bits.CLOCKMUL = clock_ratio_index;
-		local_irq_disable();
-		wrmsrl (MSR_VIA_BCR2, bcr2.val);
-		safe_halt();
-
-		/* Disable software clock multiplier */
-		rdmsrl (MSR_VIA_BCR2, bcr2.val);
-		bcr2.bits.ESOFTBF = 0;
-		local_irq_disable();
-		wrmsrl (MSR_VIA_BCR2, bcr2.val);
-		local_irq_enable();
+		do_longhaul1(cx->address, clock_ratio_index);
 		break;
 
 	/*
@@ -273,10 +259,22 @@ static void longhaul_setstate(unsigned int clock_ratio_index)
 	 * to work in practice.
 	 */
 	case TYPE_POWERSAVER:
-		do_powersaver(&longhaul, clock_ratio_index);
+		do_powersaver(cx->address, clock_ratio_index);
 		break;
 	}
 
+	/* Enable bus master arbitration */
+	if (pr->flags.bm_check) {
+		acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0,
+				  ACPI_MTX_DO_NOT_LOCK);
+	}
+
+	outb(pic2_mask,0xA1);	/* restore mask */
+	outb(pic1_mask,0x21);
+
+	local_irq_restore(flags);
+	preempt_enable();
+
 	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
 }
 
@@ -324,9 +322,11 @@ static int guess_fsb(void)
 static int __init longhaul_get_ranges(void)
 {
 	unsigned long invalue;
-	unsigned int multipliers[32]= {
-		50,30,40,100,55,35,45,95,90,70,80,60,120,75,85,65,
-		-1,110,120,-1,135,115,125,105,130,150,160,140,-1,155,-1,145 };
+	unsigned int ezra_t_multipliers[32]= {
+			90,  30,  40, 100,  55,  35,  45,  95,
+			50,  70,  80,  60, 120,  75,  85,  65,
+			-1, 110, 120,  -1, 135, 115, 125, 105,
+			130, 150, 160, 140,  -1, 155,  -1, 145 };
 	unsigned int j, k = 0;
 	union msr_longhaul longhaul;
 	unsigned long lo, hi;
@@ -355,13 +355,13 @@ static int __init longhaul_get_ranges(void)
 			invalue = longhaul.bits.MaxMHzBR;
 			if (longhaul.bits.MaxMHzBR4)
 				invalue += 16;
-			maxmult=multipliers[invalue];
+			maxmult=ezra_t_multipliers[invalue];
 
 			invalue = longhaul.bits.MinMHzBR;
 			if (longhaul.bits.MinMHzBR4 == 1)
 				minmult = 30;
 			else
-				minmult = multipliers[invalue];
+				minmult = ezra_t_multipliers[invalue];
 			fsb = eblcr_fsb_table_v2[longhaul.bits.MaxMHzFSB];
 			break;
 		}
@@ -527,6 +527,18 @@ static unsigned int longhaul_get(unsigned int cpu)
 	return calc_speed(longhaul_get_cpu_mult());
 }
 
+static acpi_status longhaul_walk_callback(acpi_handle obj_handle,
+					  u32 nesting_level,
+					  void *context, void **return_value)
+{
+	struct acpi_device *d;
+
+	if ( acpi_bus_get_device(obj_handle, &d) ) {
+		return 0;
+	}
+	*return_value = (void *)acpi_driver_data(d);
+	return 1;
+}
 
 static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
 {
@@ -534,6 +546,15 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
 	char *cpuname=NULL;
 	int ret;
 
+	/* Check ACPI support for C3 state */
+	acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
+			 &longhaul_walk_callback, NULL, (void *)&pr);
+	if (pr == NULL) goto err_acpi;
+
+	cx = &pr->power.states[ACPI_STATE_C3];
+	if (cx->address == 0 || cx->latency > 1000) goto err_acpi;
+
+	/* Now check what we have on this motherboard */
 	switch (c->x86_model) {
 	case 6:
 		cpu_model = CPU_SAMUEL;
@@ -634,6 +655,10 @@ static int __init longhaul_cpu_init(struct cpufreq_policy *policy)
 	cpufreq_frequency_table_get_attr(longhaul_table, policy->cpu);
 
 	return 0;
+
+err_acpi:
+	printk(KERN_ERR PFX "No ACPI support for CPU frequency changes.\n");
+	return -ENODEV;
 }
 
 static int __devexit longhaul_cpu_exit(struct cpufreq_policy *policy)
@@ -666,6 +691,18 @@ static int __init longhaul_init(void)
 	if (c->x86_vendor != X86_VENDOR_CENTAUR || c->x86 != 6)
 		return -ENODEV;
 
+#ifdef CONFIG_SMP
+	if (num_online_cpus() > 1) {
+		return -ENODEV;
+		printk(KERN_ERR PFX "More than 1 CPU detected, longhaul disabled.\n");
+	}
+#endif
+#ifdef CONFIG_X86_IO_APIC
+	if (cpu_has_apic) {
+		printk(KERN_ERR PFX "APIC detected. Longhaul is currently broken in this configuration.\n");
+		return -ENODEV;
+	}
+#endif
 	switch (c->x86_model) {
 	case 6 ... 9:
 		return cpufreq_register_driver(&longhaul_driver);
@@ -699,6 +736,6 @@ MODULE_AUTHOR ("Dave Jones <davej@codemonkey.org.uk>");
 MODULE_DESCRIPTION ("Longhaul driver for VIA Cyrix processors.");
 MODULE_LICENSE ("GPL");
 
-module_init(longhaul_init);
+late_initcall(longhaul_init);
 module_exit(longhaul_exit);
 

arch/ia64/kernel/uncached.c

@@ -32,32 +32,38 @@
 
 extern void __init efi_memmap_walk_uc(efi_freemem_callback_t, void *);
 
-#define MAX_UNCACHED_GRANULES	5
-static int allocated_granules;
+struct uncached_pool {
+	struct gen_pool *pool;
+	struct mutex add_chunk_mutex;	/* serialize adding a converted chunk */
+	int nchunks_added;		/* #of converted chunks added to pool */
+	atomic_t status;		/* smp called function's return status*/
+};
 
-struct gen_pool *uncached_pool[MAX_NUMNODES];
+#define MAX_CONVERTED_CHUNKS_PER_NODE	2
+
+struct uncached_pool uncached_pools[MAX_NUMNODES];
 
 
 static void uncached_ipi_visibility(void *data)
 {
 	int status;
+	struct uncached_pool *uc_pool = (struct uncached_pool *)data;
 
 	status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL);
 	if ((status != PAL_VISIBILITY_OK) &&
 	    (status != PAL_VISIBILITY_OK_REMOTE_NEEDED))
-		printk(KERN_DEBUG "pal_prefetch_visibility() returns %i on "
-		       "CPU %i\n", status, raw_smp_processor_id());
+		atomic_inc(&uc_pool->status);
 }
 
 
 static void uncached_ipi_mc_drain(void *data)
 {
 	int status;
+	struct uncached_pool *uc_pool = (struct uncached_pool *)data;
 
 	status = ia64_pal_mc_drain();
-	if (status)
-		printk(KERN_WARNING "ia64_pal_mc_drain() failed with %i on "
-		       "CPU %i\n", status, raw_smp_processor_id());
+	if (status != PAL_STATUS_SUCCESS)
+		atomic_inc(&uc_pool->status);
 }
 
 
@@ -70,21 +76,34 @@ static void uncached_ipi_mc_drain(void *data)
  * This is accomplished by first allocating a granule of cached memory pages
  * and then converting them to uncached memory pages.
  */
-static int uncached_add_chunk(struct gen_pool *pool, int nid)
+static int uncached_add_chunk(struct uncached_pool *uc_pool, int nid)
 {
 	struct page *page;
-	int status, i;
+	int status, i, nchunks_added = uc_pool->nchunks_added;
 	unsigned long c_addr, uc_addr;
 
-	if (allocated_granules >= MAX_UNCACHED_GRANULES)
+	if (mutex_lock_interruptible(&uc_pool->add_chunk_mutex) != 0)
+		return -1;	/* interrupted by a signal */
+
+	if (uc_pool->nchunks_added > nchunks_added) {
+		/* someone added a new chunk while we were waiting */
+		mutex_unlock(&uc_pool->add_chunk_mutex);
+		return 0;
+	}
+
+	if (uc_pool->nchunks_added >= MAX_CONVERTED_CHUNKS_PER_NODE) {
+		mutex_unlock(&uc_pool->add_chunk_mutex);
 		return -1;
+	}
 
 	/* attempt to allocate a granule's worth of cached memory pages */
 
 	page = alloc_pages_node(nid, GFP_KERNEL | __GFP_ZERO,
 				IA64_GRANULE_SHIFT-PAGE_SHIFT);
-	if (!page)
+	if (!page) {
+		mutex_unlock(&uc_pool->add_chunk_mutex);
 		return -1;
+	}
 
 	/* convert the memory pages from cached to uncached */
 
@@ -102,11 +121,14 @@ static int uncached_add_chunk(struct gen_pool *pool, int nid)
 	flush_tlb_kernel_range(uc_addr, uc_adddr + IA64_GRANULE_SIZE);
 
 	status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL);
-	if (!status) {
-		status = smp_call_function(uncached_ipi_visibility, NULL, 0, 1);
-		if (status)
+	if (status == PAL_VISIBILITY_OK_REMOTE_NEEDED) {
+		atomic_set(&uc_pool->status, 0);
+		status = smp_call_function(uncached_ipi_visibility, uc_pool,
+					   0, 1);
+		if (status || atomic_read(&uc_pool->status))
 			goto failed;
-	}
+	} else if (status != PAL_VISIBILITY_OK)
+		goto failed;
 
 	preempt_disable();
 
@@ -120,20 +142,24 @@ static int uncached_add_chunk(struct gen_pool *pool, int nid)
 
 	preempt_enable();
 
-	ia64_pal_mc_drain();
-	status = smp_call_function(uncached_ipi_mc_drain, NULL, 0, 1);
-	if (status)
+	status = ia64_pal_mc_drain();
+	if (status != PAL_STATUS_SUCCESS)
+		goto failed;
+	atomic_set(&uc_pool->status, 0);
+	status = smp_call_function(uncached_ipi_mc_drain, uc_pool, 0, 1);
+	if (status || atomic_read(&uc_pool->status))
 		goto failed;
 
 	/*
 	 * The chunk of memory pages has been converted to uncached so now we
 	 * can add it to the pool.
 	 */
-	status = gen_pool_add(pool, uc_addr, IA64_GRANULE_SIZE, nid);
+	status = gen_pool_add(uc_pool->pool, uc_addr, IA64_GRANULE_SIZE, nid);
 	if (status)
 		goto failed;
 
-	allocated_granules++;
+	uc_pool->nchunks_added++;
+	mutex_unlock(&uc_pool->add_chunk_mutex);
 	return 0;
 
 	/* failed to convert or add the chunk so give it back to the kernel */
@@ -142,6 +168,7 @@ failed:
 		ClearPageUncached(&page[i]);
 
 	free_pages(c_addr, IA64_GRANULE_SHIFT-PAGE_SHIFT);
+	mutex_unlock(&uc_pool->add_chunk_mutex);
 	return -1;
 }
 
@@ -158,7 +185,7 @@ failed:
 unsigned long uncached_alloc_page(int starting_nid)
 {
 	unsigned long uc_addr;
-	struct gen_pool *pool;
+	struct uncached_pool *uc_pool;
 	int nid;
 
 	if (unlikely(starting_nid >= MAX_NUMNODES))
@@ -171,14 +198,14 @@ unsigned long uncached_alloc_page(int starting_nid)
 	do {
 		if (!node_online(nid))
 			continue;
-		pool = uncached_pool[nid];
-		if (pool == NULL)
+		uc_pool = &uncached_pools[nid];
+		if (uc_pool->pool == NULL)
 			continue;
 		do {
-			uc_addr = gen_pool_alloc(pool, PAGE_SIZE);
+			uc_addr = gen_pool_alloc(uc_pool->pool, PAGE_SIZE);
 			if (uc_addr != 0)
 				return uc_addr;
-		} while (uncached_add_chunk(pool, nid) == 0);
+		} while (uncached_add_chunk(uc_pool, nid) == 0);
 
 	} while ((nid = (nid + 1) % MAX_NUMNODES) != starting_nid);
 
@@ -197,7 +224,7 @@ EXPORT_SYMBOL(uncached_alloc_page);
 void uncached_free_page(unsigned long uc_addr)
 {
 	int nid = paddr_to_nid(uc_addr - __IA64_UNCACHED_OFFSET);
-	struct gen_pool *pool = uncached_pool[nid];
+	struct gen_pool *pool = uncached_pools[nid].pool;
 
 	if (unlikely(pool == NULL))
 		return;
@@ -224,7 +251,7 @@ static int __init uncached_build_memmap(unsigned long uc_start,
 					unsigned long uc_end, void *arg)
 {
 	int nid = paddr_to_nid(uc_start - __IA64_UNCACHED_OFFSET);
-	struct gen_pool *pool = uncached_pool[nid];
+	struct gen_pool *pool = uncached_pools[nid].pool;
 	size_t size = uc_end - uc_start;
 
 	touch_softlockup_watchdog();
@@ -242,7 +269,8 @@ static int __init uncached_init(void)
 	int nid;
 
 	for_each_online_node(nid) {
-		uncached_pool[nid] = gen_pool_create(PAGE_SHIFT, nid);
+		uncached_pools[nid].pool = gen_pool_create(PAGE_SHIFT, nid);
+		mutex_init(&uncached_pools[nid].add_chunk_mutex);
 	}
 
 	efi_memmap_walk_uc(uncached_build_memmap, NULL);

arch/sh/kernel/cpu/sh4/sq.c

@@ -421,18 +421,22 @@ static struct miscdevice sq_dev = {
 
 static int __init sq_api_init(void)
 {
+	int ret;
 	printk(KERN_NOTICE "sq: Registering store queue API.\n");
 
-#ifdef CONFIG_PROC_FS
 	create_proc_read_entry("sq_mapping", 0, 0, sq_mapping_read_proc, 0);
-#endif
 
-	return misc_register(&sq_dev);
+	ret = misc_register(&sq_dev);
+	if (ret)
+		remove_proc_entry("sq_mapping", NULL);
+
+	return ret;
 }
 
 static void __exit sq_api_exit(void)
 {
 	misc_deregister(&sq_dev);
+	remove_proc_entry("sq_mapping", NULL);
 }
 
 module_init(sq_api_init);

arch/x86_64/kernel/smp.c

@@ -203,7 +203,7 @@ int __cpuinit init_smp_flush(void)
 {
 	int i;
 	for_each_cpu_mask(i, cpu_possible_map) {
-		spin_lock_init(&per_cpu(flush_state.tlbstate_lock, i));
+		spin_lock_init(&per_cpu(flush_state, i).tlbstate_lock);
 	}
 	return 0;
 }

drivers/acpi/acpi_memhotplug.c

@@ -129,11 +129,15 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
 	struct acpi_memory_info *info, *n;
 
 
+	if (!list_empty(&mem_device->res_list))
+		return 0;
+
 	status = acpi_walk_resources(mem_device->device->handle, METHOD_NAME__CRS,
 				     acpi_memory_get_resource, mem_device);
 	if (ACPI_FAILURE(status)) {
 		list_for_each_entry_safe(info, n, &mem_device->res_list, list)
 			kfree(info);
+		INIT_LIST_HEAD(&mem_device->res_list);
 		return -EINVAL;
 	}
 
@@ -230,17 +234,10 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
 	 * (i.e. memory-hot-remove function)
 	 */
 	list_for_each_entry(info, &mem_device->res_list, list) {
-		u64 start_pfn, end_pfn;
-
-		start_pfn = info->start_addr >> PAGE_SHIFT;
-		end_pfn = (info->start_addr + info->length - 1) >> PAGE_SHIFT;
-
-		if (pfn_valid(start_pfn) || pfn_valid(end_pfn)) {
-			/* already enabled. try next area */
+		if (info->enabled) { /* just sanity check...*/
 			num_enabled++;
 			continue;
 		}
-
 		result = add_memory(node, info->start_addr, info->length);
 		if (result)
 			continue;

drivers/char/hvsi.c

@@ -311,7 +311,8 @@ static void hvsi_recv_control(struct hvsi_struct *hp, uint8_t *packet,
 				/* CD went away; no more connection */
 				pr_debug("hvsi%i: CD dropped\n", hp->index);
 				hp->mctrl &= TIOCM_CD;
-				if (!(hp->tty->flags & CLOCAL))
+				/* If userland hasn't done an open(2) yet, hp->tty is NULL. */
+				if (hp->tty && !(hp->tty->flags & CLOCAL))
 					*to_hangup = hp->tty;
 			}
 			break;
@@ -986,10 +987,7 @@ static void hvsi_write_worker(void *arg)
 		start_j = 0;
 #endif /* DEBUG */
 		wake_up_all(&hp->emptyq);
-		if (test_bit(TTY_DO_WRITE_WAKEUP, &hp->tty->flags)
-				&& hp->tty->ldisc.write_wakeup)
-			hp->tty->ldisc.write_wakeup(hp->tty);
-		wake_up_interruptible(&hp->tty->write_wait);
+		tty_wakeup(hp->tty);
 	}
 
 out:

drivers/char/hw_random/omap-rng.c

@@ -25,12 +25,12 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/random.h>
+#include <linux/clk.h>
 #include <linux/err.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/hw_random.h>
 
 #include <asm/io.h>
-#include <asm/hardware/clock.h>
 
 #define RNG_OUT_REG		0x00		/* Output register */
 #define RNG_STAT_REG		0x04		/* Status register
@@ -52,7 +52,7 @@
 
 static void __iomem *rng_base;
 static struct clk *rng_ick;
-static struct device *rng_dev;
+static struct platform_device *rng_dev;
 
 static u32 omap_rng_read_reg(int reg)
 {
@@ -83,9 +83,8 @@ static struct hwrng omap_rng_ops = {
 	.data_read	= omap_rng_data_read,
 };
 
-static int __init omap_rng_probe(struct device *dev)
+static int __init omap_rng_probe(struct platform_device *pdev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
 	struct resource *res, *mem;
 	int ret;
 
@@ -95,16 +94,14 @@ static int __init omap_rng_probe(struct device *dev)
 	 */
 	BUG_ON(rng_dev);
 
-    	if (cpu_is_omap24xx()) {
+	if (cpu_is_omap24xx()) {
 		rng_ick = clk_get(NULL, "rng_ick");
 		if (IS_ERR(rng_ick)) {
-			dev_err(dev, "Could not get rng_ick\n");
+			dev_err(&pdev->dev, "Could not get rng_ick\n");
 			ret = PTR_ERR(rng_ick);
 			return ret;
-		}
-		else {
-			clk_use(rng_ick);
-		}
+		} else
+			clk_enable(rng_ick);
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -117,7 +114,7 @@ static int __init omap_rng_probe(struct device *dev)
 	if (mem == NULL)
 		return -EBUSY;
 
-	dev_set_drvdata(dev, mem);
+	dev_set_drvdata(&pdev->dev, mem);
 	rng_base = (u32 __iomem *)io_p2v(res->start);
 
 	ret = hwrng_register(&omap_rng_ops);
@@ -127,25 +124,25 @@ static int __init omap_rng_probe(struct device *dev)
 		return ret;
 	}
 
-	dev_info(dev, "OMAP Random Number Generator ver. %02x\n",
+	dev_info(&pdev->dev, "OMAP Random Number Generator ver. %02x\n",
 		omap_rng_read_reg(RNG_REV_REG));
 	omap_rng_write_reg(RNG_MASK_REG, 0x1);
 
-	rng_dev = dev;
+	rng_dev = pdev;
 
 	return 0;
 }
 
-static int __exit omap_rng_remove(struct device *dev)
+static int __exit omap_rng_remove(struct platform_device *pdev)
 {
-	struct resource *mem = dev_get_drvdata(dev);
+	struct resource *mem = dev_get_drvdata(&pdev->dev);
 
 	hwrng_unregister(&omap_rng_ops);
 
 	omap_rng_write_reg(RNG_MASK_REG, 0x0);
 
 	if (cpu_is_omap24xx()) {
-		clk_unuse(rng_ick);
+		clk_disable(rng_ick);
 		clk_put(rng_ick);
 	}
 
@@ -157,18 +154,16 @@ static int __exit omap_rng_remove(struct device *dev)
 
 #ifdef CONFIG_PM
 
-static int omap_rng_suspend(struct device *dev, pm_message_t message, u32 level)
+static int omap_rng_suspend(struct platform_device *pdev, pm_message_t message)
 {
 	omap_rng_write_reg(RNG_MASK_REG, 0x0);
-
 	return 0;
 }
 
-static int omap_rng_resume(struct device *dev, pm_message_t message, u32 level)
+static int omap_rng_resume(struct platform_device *pdev)
 {
 	omap_rng_write_reg(RNG_MASK_REG, 0x1);
-
-	return 1;
+	return 0;
 }
 
 #else
@@ -179,9 +174,11 @@ static int omap_rng_resume(struct device *dev, pm_message_t message, u32 level)
 #endif
 
 
-static struct device_driver omap_rng_driver = {
-	.name		= "omap_rng",
-	.bus		= &platform_bus_type,
+static struct platform_driver omap_rng_driver = {
+	.driver = {
+		.name		= "omap_rng",
+		.owner		= THIS_MODULE,
+	},
 	.probe		= omap_rng_probe,
 	.remove		= __exit_p(omap_rng_remove),
 	.suspend	= omap_rng_suspend,
@@ -193,12 +190,12 @@ static int __init omap_rng_init(void)
 	if (!cpu_is_omap16xx() && !cpu_is_omap24xx())
 		return -ENODEV;
 
-	return driver_register(&omap_rng_driver);
+	return platform_driver_register(&omap_rng_driver);
 }
 
 static void __exit omap_rng_exit(void)
 {
-	driver_unregister(&omap_rng_driver);
+	platform_driver_unregister(&omap_rng_driver);
 }
 
 module_init(omap_rng_init);

drivers/char/keyboard.c

@@ -107,7 +107,6 @@ const int NR_TYPES = ARRAY_SIZE(max_vals);
 
 struct kbd_struct kbd_table[MAX_NR_CONSOLES];
 static struct kbd_struct *kbd = kbd_table;
-static struct kbd_struct kbd0;
 
 int spawnpid, spawnsig;
 
@@ -223,13 +222,13 @@ static void kd_nosound(unsigned long ignored)
 {
 	struct list_head *node;
 
-	list_for_each(node,&kbd_handler.h_list) {
+	list_for_each(node, &kbd_handler.h_list) {
 		struct input_handle *handle = to_handle_h(node);
 		if (test_bit(EV_SND, handle->dev->evbit)) {
 			if (test_bit(SND_TONE, handle->dev->sndbit))
-				input_event(handle->dev, EV_SND, SND_TONE, 0);
+				input_inject_event(handle, EV_SND, SND_TONE, 0);
 			if (test_bit(SND_BELL, handle->dev->sndbit))
-				input_event(handle->dev, EV_SND, SND_BELL, 0);
+				input_inject_event(handle, EV_SND, SND_BELL, 0);
 		}
 	}
 }
@@ -247,11 +246,11 @@ void kd_mksound(unsigned int hz, unsigned int ticks)
 			struct input_handle *handle = to_handle_h(node);
 			if (test_bit(EV_SND, handle->dev->evbit)) {
 				if (test_bit(SND_TONE, handle->dev->sndbit)) {
-					input_event(handle->dev, EV_SND, SND_TONE, hz);
+					input_inject_event(handle, EV_SND, SND_TONE, hz);
 					break;
 				}
 				if (test_bit(SND_BELL, handle->dev->sndbit)) {
-					input_event(handle->dev, EV_SND, SND_BELL, 1);
+					input_inject_event(handle, EV_SND, SND_BELL, 1);
 					break;
 				}
 			}
@@ -272,15 +271,15 @@ int kbd_rate(struct kbd_repeat *rep)
 	unsigned int d = 0;
 	unsigned int p = 0;
 
-	list_for_each(node,&kbd_handler.h_list) {
+	list_for_each(node, &kbd_handler.h_list) {
 		struct input_handle *handle = to_handle_h(node);
 		struct input_dev *dev = handle->dev;
 
 		if (test_bit(EV_REP, dev->evbit)) {
 			if (rep->delay > 0)
-				input_event(dev, EV_REP, REP_DELAY, rep->delay);
+				input_inject_event(handle, EV_REP, REP_DELAY, rep->delay);
 			if (rep->period > 0)
-				input_event(dev, EV_REP, REP_PERIOD, rep->period);
+				input_inject_event(handle, EV_REP, REP_PERIOD, rep->period);
 			d = dev->rep[REP_DELAY];
 			p = dev->rep[REP_PERIOD];
 		}
@@ -988,7 +987,7 @@ static inline unsigned char getleds(void)
  * interrupt routines for this thing allows us to easily mask
  * this when we don't want any of the above to happen.
  * This allows for easy and efficient race-condition prevention
- * for kbd_refresh_leds => input_event(dev, EV_LED, ...) => ...
+ * for kbd_start => input_inject_event(dev, EV_LED, ...) => ...
  */
 
 static void kbd_bh(unsigned long dummy)
@@ -998,11 +997,11 @@ static void kbd_bh(unsigned long dummy)
 
 	if (leds != ledstate) {
 		list_for_each(node, &kbd_handler.h_list) {
-			struct input_handle * handle = to_handle_h(node);
-			input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
-			input_event(handle->dev, EV_LED, LED_NUML,    !!(leds & 0x02));
-			input_event(handle->dev, EV_LED, LED_CAPSL,   !!(leds & 0x04));
-			input_sync(handle->dev);
+			struct input_handle *handle = to_handle_h(node);
+			input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
+			input_inject_event(handle, EV_LED, LED_NUML,    !!(leds & 0x02));
+			input_inject_event(handle, EV_LED, LED_CAPSL,   !!(leds & 0x04));
+			input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
 		}
 	}
 
@@ -1011,23 +1010,6 @@ static void kbd_bh(unsigned long dummy)
 
 DECLARE_TASKLET_DISABLED(keyboard_tasklet, kbd_bh, 0);
 
-/*
- * This allows a newly plugged keyboard to pick the LED state.
- */
-static void kbd_refresh_leds(struct input_handle *handle)
-{
-	unsigned char leds = ledstate;
-
-	tasklet_disable(&keyboard_tasklet);
-	if (leds != 0xff) {
-		input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
-		input_event(handle->dev, EV_LED, LED_NUML,    !!(leds & 0x02));
-		input_event(handle->dev, EV_LED, LED_CAPSL,   !!(leds & 0x04));
-		input_sync(handle->dev);
-	}
-	tasklet_enable(&keyboard_tasklet);
-}
-
 #if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
     defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
     defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
@@ -1043,7 +1025,7 @@ static const unsigned short x86_keycodes[256] =
 	 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
 	 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
 	 80, 81, 82, 83, 84,118, 86, 87, 88,115,120,119,121,112,123, 92,
-	284,285,309,298,312, 91,327,328,329,331,333,335,336,337,338,339,
+	284,285,309,  0,312, 91,327,328,329,331,333,335,336,337,338,339,
 	367,288,302,304,350, 89,334,326,267,126,268,269,125,347,348,349,
 	360,261,262,263,268,376,100,101,321,316,373,286,289,102,351,355,
 	103,104,105,275,287,279,306,106,274,107,294,364,358,363,362,361,
@@ -1065,38 +1047,55 @@ extern void sun_do_break(void);
 static int emulate_raw(struct vc_data *vc, unsigned int keycode,
 		       unsigned char up_flag)
 {
-	if (keycode > 255 || !x86_keycodes[keycode])
-		return -1;
+	int code;
 
 	switch (keycode) {
 		case KEY_PAUSE:
 			put_queue(vc, 0xe1);
 			put_queue(vc, 0x1d | up_flag);
 			put_queue(vc, 0x45 | up_flag);
-			return 0;
+			break;
+
 		case KEY_HANGEUL:
 			if (!up_flag)
 				put_queue(vc, 0xf2);
-			return 0;
+			break;
+
 		case KEY_HANJA:
 			if (!up_flag)
 				put_queue(vc, 0xf1);
-			return 0;
-	}
+			break;
 
-	if (keycode == KEY_SYSRQ && sysrq_alt) {
-		put_queue(vc, 0x54 | up_flag);
-		return 0;
-	}
+		case KEY_SYSRQ:
+			/*
+			 * Real AT keyboards (that's what we're trying
+			 * to emulate here emit 0xe0 0x2a 0xe0 0x37 when
+			 * pressing PrtSc/SysRq alone, but simply 0x54
+			 * when pressing Alt+PrtSc/SysRq.
+			 */
+			if (sysrq_alt) {
+				put_queue(vc, 0x54 | up_flag);
+			} else {
+				put_queue(vc, 0xe0);
+				put_queue(vc, 0x2a | up_flag);
+				put_queue(vc, 0xe0);
+				put_queue(vc, 0x37 | up_flag);
+			}
+			break;
 
-	if (x86_keycodes[keycode] & 0x100)
-		put_queue(vc, 0xe0);
+		default:
+			if (keycode > 255)
+				return -1;
 
-	put_queue(vc, (x86_keycodes[keycode] & 0x7f) | up_flag);
+			code = x86_keycodes[keycode];
+			if (!code)
+				return -1;
 
-	if (keycode == KEY_SYSRQ) {
-		put_queue(vc, 0xe0);
-		put_queue(vc, 0x37 | up_flag);
+			if (code & 0x100)
+				put_queue(vc, 0xe0);
+			put_queue(vc, (code & 0x7f) | up_flag);
+
+			break;
 	}
 
 	return 0;
@@ -1298,16 +1297,15 @@ static struct input_handle *kbd_connect(struct input_handler *handler,
 	if (i == BTN_MISC && !test_bit(EV_SND, dev->evbit))
 		return NULL;
 
-	if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL)))
+	handle = kzalloc(sizeof(struct input_handle), GFP_KERNEL);
+	if (!handle)
 		return NULL;
-	memset(handle, 0, sizeof(struct input_handle));
 
 	handle->dev = dev;
 	handle->handler = handler;
 	handle->name = "kbd";
 
 	input_open_device(handle);
-	kbd_refresh_leds(handle);
 
 	return handle;
 }
@@ -1318,6 +1316,24 @@ static void kbd_disconnect(struct input_handle *handle)
 	kfree(handle);
 }
 
+/*
+ * Start keyboard handler on the new keyboard by refreshing LED state to
+ * match the rest of the system.
+ */
+static void kbd_start(struct input_handle *handle)
+{
+	unsigned char leds = ledstate;
+
+	tasklet_disable(&keyboard_tasklet);
+	if (leds != 0xff) {
+		input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
+		input_inject_event(handle, EV_LED, LED_NUML,    !!(leds & 0x02));
+		input_inject_event(handle, EV_LED, LED_CAPSL,   !!(leds & 0x04));
+		input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
+	}
+	tasklet_enable(&keyboard_tasklet);
+}
+
 static struct input_device_id kbd_ids[] = {
 	{
                 .flags = INPUT_DEVICE_ID_MATCH_EVBIT,
@@ -1338,6 +1354,7 @@ static struct input_handler kbd_handler = {
 	.event		= kbd_event,
 	.connect	= kbd_connect,
 	.disconnect	= kbd_disconnect,
+	.start		= kbd_start,
 	.name		= "kbd",
 	.id_table	= kbd_ids,
 };
@@ -1346,15 +1363,15 @@ int __init kbd_init(void)
 {
 	int i;
 
-        kbd0.ledflagstate = kbd0.default_ledflagstate = KBD_DEFLEDS;
-        kbd0.ledmode = LED_SHOW_FLAGS;
-        kbd0.lockstate = KBD_DEFLOCK;
-        kbd0.slockstate = 0;
-        kbd0.modeflags = KBD_DEFMODE;
-        kbd0.kbdmode = VC_XLATE;
-
-        for (i = 0 ; i < MAX_NR_CONSOLES ; i++)
-                kbd_table[i] = kbd0;
+        for (i = 0; i < MAX_NR_CONSOLES; i++) {
+		kbd_table[i].ledflagstate = KBD_DEFLEDS;
+		kbd_table[i].default_ledflagstate = KBD_DEFLEDS;
+		kbd_table[i].ledmode = LED_SHOW_FLAGS;
+		kbd_table[i].lockstate = KBD_DEFLOCK;
+		kbd_table[i].slockstate = 0;
+		kbd_table[i].modeflags = KBD_DEFMODE;
+		kbd_table[i].kbdmode = VC_XLATE;
+	}
 
 	input_register_handler(&kbd_handler);
 

drivers/cpufreq/cpufreq.c

@@ -284,39 +284,69 @@ EXPORT_SYMBOL_GPL(cpufreq_notify_transition);
  *                          SYSFS INTERFACE                          *
  *********************************************************************/
 
+static struct cpufreq_governor *__find_governor(const char *str_governor)
+{
+	struct cpufreq_governor *t;
+
+	list_for_each_entry(t, &cpufreq_governor_list, governor_list)
+		if (!strnicmp(str_governor,t->name,CPUFREQ_NAME_LEN))
+			return t;
+
+	return NULL;
+}
+
 /**
  * cpufreq_parse_governor - parse a governor string
  */
 static int cpufreq_parse_governor (char *str_governor, unsigned int *policy,
 				struct cpufreq_governor **governor)
 {
+	int err = -EINVAL;
+
 	if (!cpufreq_driver)
-		return -EINVAL;
+		goto out;
+
 	if (cpufreq_driver->setpolicy) {
 		if (!strnicmp(str_governor, "performance", CPUFREQ_NAME_LEN)) {
 			*policy = CPUFREQ_POLICY_PERFORMANCE;
-			return 0;
+			err = 0;
 		} else if (!strnicmp(str_governor, "powersave", CPUFREQ_NAME_LEN)) {
 			*policy = CPUFREQ_POLICY_POWERSAVE;
-			return 0;
+			err = 0;
 		}
-		return -EINVAL;
-	} else {
+	} else if (cpufreq_driver->target) {
 		struct cpufreq_governor *t;
+
 		mutex_lock(&cpufreq_governor_mutex);
-		if (!cpufreq_driver || !cpufreq_driver->target)
-			goto out;
-		list_for_each_entry(t, &cpufreq_governor_list, governor_list) {
-			if (!strnicmp(str_governor,t->name,CPUFREQ_NAME_LEN)) {
-				*governor = t;
+
+		t = __find_governor(str_governor);
+
+		if (t == NULL) {
+			char *name = kasprintf(GFP_KERNEL, "cpufreq_%s", str_governor);
+
+			if (name) {
+				int ret;
+
 				mutex_unlock(&cpufreq_governor_mutex);
-				return 0;
+				ret = request_module(name);
+				mutex_lock(&cpufreq_governor_mutex);
+
+				if (ret == 0)
+					t = __find_governor(str_governor);
 			}
+
+			kfree(name);
 		}
-out:
+
+		if (t != NULL) {
+			*governor = t;
+			err = 0;
+		}
+
 		mutex_unlock(&cpufreq_governor_mutex);
 	}
-	return -EINVAL;
+  out:
+	return err;
 }
 
 
@@ -1265,23 +1295,21 @@ static int __cpufreq_governor(struct cpufreq_policy *policy, unsigned int event)
 
 int cpufreq_register_governor(struct cpufreq_governor *governor)
 {
-	struct cpufreq_governor *t;
+	int err;
 
 	if (!governor)
 		return -EINVAL;
 
 	mutex_lock(&cpufreq_governor_mutex);
 
-	list_for_each_entry(t, &cpufreq_governor_list, governor_list) {
-		if (!strnicmp(governor->name,t->name,CPUFREQ_NAME_LEN)) {
-			mutex_unlock(&cpufreq_governor_mutex);
-			return -EBUSY;
-		}
+	err = -EBUSY;
+	if (__find_governor(governor->name) == NULL) {
+		err = 0;
+		list_add(&governor->governor_list, &cpufreq_governor_list);
 	}
-	list_add(&governor->governor_list, &cpufreq_governor_list);
 
 	mutex_unlock(&cpufreq_governor_mutex);
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL_GPL(cpufreq_register_governor);
 
@@ -1343,6 +1371,11 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data, struct cpufreq_poli
 
 	memcpy(&policy->cpuinfo, &data->cpuinfo, sizeof(struct cpufreq_cpuinfo));
 
+	if (policy->min > data->min && policy->min > policy->max) {
+		ret = -EINVAL;
+		goto error_out;
+	}
+
 	/* verify the cpu speed can be set within this limit */
 	ret = cpufreq_driver->verify(policy);
 	if (ret)

drivers/edac/edac_mc.h

@@ -29,6 +29,7 @@
 #include <linux/rcupdate.h>
 #include <linux/completion.h>
 #include <linux/kobject.h>
+#include <linux/platform_device.h>
 
 #define EDAC_MC_LABEL_LEN	31
 #define MC_PROC_NAME_MAX_LEN 7

drivers/i2c/busses/scx200_acb.c

@@ -232,7 +232,7 @@ static void scx200_acb_poll(struct scx200_acb_iface *iface)
 	unsigned long timeout;
 
 	timeout = jiffies + POLL_TIMEOUT;
-	while (time_before(jiffies, timeout)) {
+	while (1) {
 		status = inb(ACBST);
 
 		/* Reset the status register to avoid the hang */
@@ -242,7 +242,10 @@ static void scx200_acb_poll(struct scx200_acb_iface *iface)
 			scx200_acb_machine(iface, status);
 			return;
 		}
-		yield();
+		if (time_after(jiffies, timeout))
+			break;
+		cpu_relax();
+		cond_resched();
 	}
 
 	dev_err(&iface->adapter.dev, "timeout in state %s\n",

drivers/ieee1394/sbp2.c

@@ -2515,6 +2515,9 @@ static int sbp2scsi_slave_configure(struct scsi_device *sdev)
 		sdev->skip_ms_page_8 = 1;
 	if (scsi_id->workarounds & SBP2_WORKAROUND_FIX_CAPACITY)
 		sdev->fix_capacity = 1;
+	if (scsi_id->ne->guid_vendor_id == 0x0010b9 && /* Maxtor's OUI */
+	    (sdev->type == TYPE_DISK || sdev->type == TYPE_RBC))
+		sdev->allow_restart = 1;
 	return 0;
 }
 

drivers/input/evdev.c

@@ -127,14 +127,10 @@ static int evdev_open(struct inode * inode, struct file * file)
 {
 	struct evdev_list *list;
 	int i = iminor(inode) - EVDEV_MINOR_BASE;
-	int accept_err;
 
 	if (i >= EVDEV_MINORS || !evdev_table[i] || !evdev_table[i]->exist)
 		return -ENODEV;
 
-	if ((accept_err = input_accept_process(&(evdev_table[i]->handle), file)))
-		return accept_err;
-
 	if (!(list = kzalloc(sizeof(struct evdev_list), GFP_KERNEL)))
 		return -ENOMEM;
 
@@ -260,7 +256,7 @@ static ssize_t evdev_write(struct file * file, const char __user * buffer, size_
 
 		if (evdev_event_from_user(buffer + retval, &event))
 			return -EFAULT;
-		input_event(list->evdev->handle.dev, event.type, event.code, event.value);
+		input_inject_event(&list->evdev->handle, event.type, event.code, event.value);
 		retval += evdev_event_size();
 	}
 
@@ -428,8 +424,8 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
 			if (get_user(v, ip + 1))
 				return -EFAULT;
 
-			input_event(dev, EV_REP, REP_DELAY, u);
-			input_event(dev, EV_REP, REP_PERIOD, v);
+			input_inject_event(&evdev->handle, EV_REP, REP_DELAY, u);
+			input_inject_event(&evdev->handle, EV_REP, REP_PERIOD, v);
 
 			return 0;
 

drivers/input/gameport/fm801-gp.c

@@ -106,10 +106,10 @@ static int __devinit fm801_gp_probe(struct pci_dev *pci, const struct pci_device
 	gp->gameport = port;
 	gp->res_port = request_region(port->io, 0x10, "FM801 GP");
 	if (!gp->res_port) {
-		kfree(gp);
-		gameport_free_port(port);
 		printk(KERN_DEBUG "fm801-gp: unable to grab region 0x%x-0x%x\n",
 			port->io, port->io + 0x0f);
+		gameport_free_port(port);
+		kfree(gp);
 		return -EBUSY;
 	}