This patch adds a seperate hid-penmount driver to work
around an issue with the HID report descriptor. The
descriptor does not contain the ContactID usage and as
result the touchscreen is represented as normal mouse
to the system.
This driver maps the button 0 emitted by the touchscreen
to BTN_TOUCH. This makes it possible to use touch events
in userspace.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
thingm_remove_rgb() needs to flush the workqueue after all the LED classes
have been unregistered, otherwise the removal might race with another LED
event coming, causing thingm_led_set() to schedule additional work after
thingm_remove_rgb() has flushed it. This obviously causes oops later, as
the scheduled work has been freed in the meantime.
In addition to that, move the hid_hw_stop() to an earlier place, so that
dmesg is not polluted by failure messages about not being able to write
the LED while the device is being shut down.
Reported-and-tested-by: Dylan Alex Simon <dylan-kernel@dylex.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch changes the way usbhid carries out Clear-Halt and reset.
Currently, after a Clear-Halt on the interrupt-IN endpoint, the driver
immediately restarts the interrupt URB, even if the Clear-Halt failed.
This doesn't work out well when the reason for the failure was that
the device was disconnected (when a low- or full-speed device is
connected through a hub to an EHCI controller, transfer errors caused
by disconnection are reported as stalls by the hub). Instead now the
driver will attempt a reset after a failed Clear-Halt.
The way resets are carried out is also changed. Now the driver will
call usb_queue_reset_device() instead of calling usb_reset_device()
directly. This avoids a deadlock that would arise when a device is
unplugged: The hid_reset() routine runs as a workqueue item, a reset
attempt after the device has been unplugged will fail, failure will
cause usbhid to be unbound, and the disconnect routine will try to do
cancel_work_sync(). The usb_queue_reset_device() implementation is
carefully written to handle scenarios like this one properly.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Atmel 840B digitizer presents a stylus interface which reports twice
the X coordinate and then twice the Y coordinate. In its current
implementation, hid-input assign the first X to X, then the second to Y,
then the first Y to Z, then the second one to RX.
This is wrong, and X should always be mapped to X, no matter what.
A solution consists in forcing X, Y, Z, RX, RY, RZ to be mapped to their
correct user space counter part.
Reported-by: Éric Brunet <Eric.Brunet@lps.ens.fr>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull HID fixes from Jiri Kosina:
- fixes for a couple potential memory corruption problems (the HW would
have to be manufactured to be deliberately evil to trigger those)
found by Ben Hawkes
- fix for potential infinite loop when using sysfs interface of
logitech driver, from Simon Wood
- a couple more simple driver fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: fix a couple of off-by-ones
HID: logitech: perform bounds checking on device_id early enough
HID: logitech: fix bounds checking on LED report size
HID: logitech: Prevent possibility of infinite loop when using /sys interface
HID: rmi: print an error if F11 is not found instead of stopping the device
HID: hid-sensor-hub: use devm_ functions consistently
HID: huion: Use allocated buffer for DMA
HID: huion: Fail on parameter retrieval errors
Pull sound fixes from Takashi Iwai:
"A bunch of ASoC fixes with a few HD-audio fixes in this pull request.
All fairly small, boring and device-specific fixes, in addition to
MAINTAINERS update for better reviewing"
* tag 'sound-3.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/hdmi - apply Valleyview fix-ups to Cherryview display codec
ALSA: hda/hdmi - set depop_delay for haswell plus
ALSA: hda - restore the gpio led after resume
ALSA: hda/realtek - Avoid setting wrong COEF on ALC269 & co
ASoC: pxa-ssp: drop SNDRV_PCM_FMTBIT_S24_LE
ASoC: fsl-esai: Revert .xlate_tdm_slot_mask() support
ASoC: mcasp: Fix implicit BLCK divider setting
ASoC: arizona: Fix TDM slot length handling in arizona_hw_params
ASoC: pcm512x: Correct Digital Playback control names
ASoC: dapm: Fix uninitialized variable in snd_soc_dapm_get_enum_double()
ASoC: Intel: Restore Baytrail ADSP streams only when ADSP was in reset
ASoC: Intel: Wait Baytrail ADSP boot at resume_early stage
ASoC: Intel: Merge Baytrail ADSP suspend_noirq into suspend_late
MAINTAINERS: Add i.MX maintainers and paths to Freescale ASoC entry
ASoC: Intel: Update Baytrail ADSP firmware name
Pull i2c fixes from Wolfram Sang:
"Here is the fixup for the 'lowlight' of my last pull request. I2C is
not selected anymore by I2C_ACPI. Instead, the code in question now
depends on I2C=y.
Also, Mika has agreed to support me and be the maintainer for I2C-ACPI
related patches. Finally, a new-ID-patch came along last week"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
MAINTAINERS: add maintainer for ACPI parts of I2C
i2c: i801: Add PCI ID for Intel Braswell
i2c: rework kernel config I2C_ACPI
Pull ia64 update from Tony Luck:
"Add memfd_create syscall to ia64"
* tag 'please-pull-memfd_create' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
[IA64] Wire up memfd_create() system call
device_index is a char type and the size of paired_dj_deivces is 7
elements, therefore proper bounds checking has to be applied to
device_index before it is used.
We are currently performing the bounds checking in
logi_dj_recv_add_djhid_device(), which is too late, as malicious device
could send REPORT_TYPE_NOTIF_DEVICE_UNPAIRED early enough and trigger the
problem in one of the report forwarding functions called from
logi_dj_raw_event().
Fix this by performing the check at the earliest possible ocasion in
logi_dj_raw_event().
Cc: stable@vger.kernel.org
Reported-by: Ben Hawkes <hawkes@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The check on report size for REPORT_TYPE_LEDS in logi_dj_ll_raw_request()
is wrong; the current check doesn't make any sense -- the report allocated
by HID core in hid_hw_raw_request() can be much larger than
DJREPORT_SHORT_LENGTH, and currently logi_dj_ll_raw_request() doesn't
handle this properly at all.
Fix the check by actually trimming down the report size properly if it is
too large.
Cc: stable@vger.kernel.org
Reported-by: Ben Hawkes <hawkes@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull cifs fixes from Steve French:
"Most important fixes in this set include three SMB3 fixes for stable
(including fix for possible kernel oops), and a workaround to allow
writes to Mac servers (only cifs dialect, not more current SMB2.1,
worked to Mac servers). Also fallocate support added, and lease fix
from Jeff"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
[SMB3] Enable fallocate -z support for SMB3 mounts
enable fallocate punch hole ("fallocate -p") for SMB3
Incorrect error returned on setting file compressed on SMB2
CIFS: Fix wrong directory attributes after rename
CIFS: Fix SMB2 readdir error handling
[CIFS] Possible null ptr deref in SMB2_tcon
[CIFS] Workaround MacOS server problem with SMB2.1 write response
cifs: handle lease F_UNLCK requests properly
Cleanup sparse file support by creating worker function for it
Add sparse file support to SMB2/SMB3 mounts
Add missing definitions for CIFS File System Attributes
cifs: remove unused function cifs_oplock_break_wait
Pull filesystem fixes from Jan Kara:
"udf, isofs, and ext3 bug fixes"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
ext3: Count internal journal as bsddf overhead in ext3_statfs
isofs: Fix unbounded recursion when processing relocated directories
udf: avoid unneeded up_write when fail to add entry in ->symlink
Pull x86 platform driver revert from Matthew Garrett:
"This clearly shouldn't have been merged. No excuse on my part"
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
Revert "platform/x86/toshiba-apci.c possible bad if test?"
Pull KVM fixes from Paolo Bonzini:
"Reverting a 3.16 patch, fixing two bugs in device assignment (one has
a CVE), and fixing some problems introduced during the merge window
(the CMA bug came in via Andrew, the x86 ones via yours truly)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
virt/kvm/assigned-dev.c: Set 'dev->irq_source_id' to '-1' after free it
Revert "KVM: x86: Increase the number of fixed MTRR regs to 10"
KVM: x86: do not check CS.DPL against RPL during task switch
KVM: x86: Avoid emulating instructions on #UD mistakenly
PC, KVM, CMA: Fix regression caused by wrong get_order() use
kvm: iommu: fix the third parameter of kvm_iommu_put_pages (CVE-2014-3601)
Pull SCSI fixes from James Bottomley:
"These are the two bug fixes I mentioned in the final merge window
pull. One is a reversed logic check in the device busy tests which
can cause a nasty hang and another crash seen in the new SCSI pool
support if the use count ever goes to zero"
[ The device busy test already got merged from a patch earlier, so is
now duplicated. ]
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] save command pool address of Scsi_Host
[SCSI] fix qemu boot hang problem
The journal blocks of external journal device should not
be counted as overhead.
Signed-off-by: Chin-Tsung Cheng <chintzung@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
The latest kernel fails to boot qemu arm images when using scsi
for disk access. Boot gets stuck after the following messages.
brd: module loaded
sym53c8xx 0000:00:0c.0: enabling device (0100 -> 0103)
sym0: <895a> rev 0x0 at pci 0000:00:0c.0 irq 93
sym0: No NVRAM, ID 7, Fast-40, LVD, parity checking
sym0: SCSI BUS has been reset.
scsi host0: sym-2.2.3
Bisect points to commit 71e75c97f9 ("scsi: convert device_busy to
atomic_t"). Code inspection shows the following suspicious change
in scsi_request_fn.
out_delay:
- if (sdev->device_busy == 0 && !scsi_device_blocked(sdev))
+ if (atomic_read(&sdev->device_busy) && !scsi_device_blocked(sdev))
blk_delay_queue(q, SCSI_QUEUE_DELAY);
}
'sdev->device_busy == 0' was replaced with 'atomic_read(&sdev->device_busy)',
meaning the logic was reversed. Changing this expression to
'!atomic_read(&sdev->device_busy)' fixes the problem.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Acked-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Venkatesh Srinivas <venkateshs@google.com>
Reviewed-by: Webb Scales <webbnh@hp.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We did not check relocated directory in any way when processing Rock
Ridge 'CL' tag. Thus a corrupted isofs image can possibly have a CL
entry pointing to another CL entry leading to possibly unbounded
recursion in kernel code and thus stack overflow or deadlocks (if there
is a loop created from CL entries).
Fix the problem by not allowing CL entry to point to a directory entry
with CL entry (such use makes no good sense anyway) and by checking
whether CL entry doesn't point to itself.
CC: stable@vger.kernel.org
Reported-by: Chris Evans <cevans@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Hans Petter Selasky
Christian Gmeiner
Jiri Kosina
Alan Stern
Benjamin Tissoires
Linus Torvalds
Michal Simek
Matthew Garrett
Chin-Tsung Cheng
Guenter Roeck
Jan Kara