V4L/DVB (3344a): Conversions from kmalloc+memset to k(z|c)alloc

Conversions from kmalloc+memset to k(z|c)alloc.

Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/common/saa7146_core.c

@@ -109,10 +109,9 @@ static struct scatterlist* vmalloc_to_sg(unsigned char *virt, int nr_pages)
 	struct page *pg;
 	int i;
 
-	sglist = kmalloc(sizeof(struct scatterlist)*nr_pages, GFP_KERNEL);
+	sglist = kcalloc(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
 	if (NULL == sglist)
 		return NULL;
-	memset(sglist,0,sizeof(struct scatterlist)*nr_pages);
 	for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {
 		pg = vmalloc_to_page(virt);
 		if (NULL == pg)
@@ -306,15 +305,13 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
 	struct saa7146_dev *dev;
 	int err = -ENOMEM;
 
-	dev = kmalloc(sizeof(struct saa7146_dev), GFP_KERNEL);
+	/* clear out mem for sure */
+	dev = kzalloc(sizeof(struct saa7146_dev), GFP_KERNEL);
 	if (!dev) {
 		ERR(("out of memory.\n"));
 		goto out;
 	}
 
-	/* clear out mem for sure */
-	memset(dev, 0x0, sizeof(struct saa7146_dev));
-
 	DEB_EE(("pci:%p\n",pci));
 
 	err = pci_enable_device(pci);

drivers/media/common/saa7146_fops.c

@@ -239,13 +239,12 @@ static int fops_open(struct inode *inode, struct file *file)
 	}
 
 	/* allocate per open data */
-	fh = kmalloc(sizeof(*fh),GFP_KERNEL);
+	fh = kzalloc(sizeof(*fh),GFP_KERNEL);
 	if (NULL == fh) {
 		DEB_S(("cannot allocate memory for per open data.\n"));
 		result = -ENOMEM;
 		goto out;
 	}
-	memset(fh,0,sizeof(*fh));
 
 	file->private_data = fh;
 	fh->dev = dev;
@@ -464,12 +463,11 @@ static struct video_device device_template =
 
 int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
 {
-	struct saa7146_vv *vv = kmalloc (sizeof(struct saa7146_vv),GFP_KERNEL);
+	struct saa7146_vv *vv = kzalloc (sizeof(struct saa7146_vv),GFP_KERNEL);
 	if( NULL == vv ) {
 		ERR(("out of memory. aborting.\n"));
 		return -1;
 	}
-	memset(vv, 0x0, sizeof(*vv));
 
 	DEB_EE(("dev:%p\n",dev));
 

drivers/media/dvb/b2c2/flexcop.c

@@ -220,20 +220,18 @@ EXPORT_SYMBOL(flexcop_reset_block_300);
 struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len)
 {
 	void *bus;
-	struct flexcop_device *fc = kmalloc(sizeof(struct flexcop_device), GFP_KERNEL);
+	struct flexcop_device *fc = kzalloc(sizeof(struct flexcop_device), GFP_KERNEL);
 	if (!fc) {
 		err("no memory");
 		return NULL;
 	}
-	memset(fc, 0, sizeof(struct flexcop_device));
 
-	bus = kmalloc(bus_specific_len, GFP_KERNEL);
+	bus = kzalloc(bus_specific_len, GFP_KERNEL);
 	if (!bus) {
 		err("no memory");
 		kfree(fc);
 		return NULL;
 	}
-	memset(bus, 0, bus_specific_len);
 
 	fc->bus_specific = bus;
 

drivers/media/dvb/bt8xx/dvb-bt8xx.c

@@ -786,10 +786,9 @@ static int dvb_bt8xx_probe(struct device *dev)
 	struct pci_dev* bttv_pci_dev;
 	int ret;
 
-	if (!(card = kmalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
+	if (!(card = kzalloc(sizeof(struct dvb_bt8xx_card), GFP_KERNEL)))
 		return -ENOMEM;
 
-	memset(card, 0, sizeof(*card));
 	init_MUTEX(&card->lock);
 	card->bttv_nr = sub->core->nr;
 	strncpy(card->card_name, sub->core->name, sizeof(sub->core->name));

drivers/media/dvb/dvb-core/dvb_ca_en50221.c

@@ -1649,21 +1649,17 @@ int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
 		return -EINVAL;
 
 	/* initialise the system data */
-	if ((ca =
-	     (struct dvb_ca_private *) kmalloc(sizeof(struct dvb_ca_private),
-					       GFP_KERNEL)) == NULL) {
+	if ((ca = kzalloc(sizeof(struct dvb_ca_private), GFP_KERNEL)) == NULL) {
 		ret = -ENOMEM;
 		goto error;
 	}
-	memset(ca, 0, sizeof(struct dvb_ca_private));
 	ca->pub = pubca;
 	ca->flags = flags;
 	ca->slot_count = slot_count;
-	if ((ca->slot_info = kmalloc(sizeof(struct dvb_ca_slot) * slot_count, GFP_KERNEL)) == NULL) {
+	if ((ca->slot_info = kcalloc(slot_count, sizeof(struct dvb_ca_slot), GFP_KERNEL)) == NULL) {
 		ret = -ENOMEM;
 		goto error;
 	}
-	memset(ca->slot_info, 0, sizeof(struct dvb_ca_slot) * slot_count);
 	init_waitqueue_head(&ca->wait_queue);
 	ca->thread_pid = 0;
 	init_waitqueue_head(&ca->thread_queue);

drivers/media/dvb/dvb-core/dvb_frontend.c

@@ -1024,13 +1024,12 @@ int dvb_register_frontend(struct dvb_adapter* dvb,
 	if (down_interruptible (&frontend_mutex))
 		return -ERESTARTSYS;
 
-	fe->frontend_priv = kmalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL);
+	fe->frontend_priv = kzalloc(sizeof(struct dvb_frontend_private), GFP_KERNEL);
 	if (fe->frontend_priv == NULL) {
 		up(&frontend_mutex);
 		return -ENOMEM;
 	}
 	fepriv = fe->frontend_priv;
-	memset(fe->frontend_priv, 0, sizeof(struct dvb_frontend_private));
 
 	init_MUTEX (&fepriv->sem);
 	init_waitqueue_head (&fepriv->wait_queue);

drivers/media/dvb/dvb-usb/dtt200u-fe.c

@@ -156,10 +156,9 @@ struct dvb_frontend* dtt200u_fe_attach(struct dvb_usb_device *d)
 	struct dtt200u_fe_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = (struct dtt200u_fe_state*) kmalloc(sizeof(struct dtt200u_fe_state), GFP_KERNEL);
+	state = kzalloc(sizeof(struct dtt200u_fe_state), GFP_KERNEL);
 	if (state == NULL)
 		goto error;
-	memset(state,0,sizeof(struct dtt200u_fe_state));
 
 	deb_info("attaching frontend dtt200u\n");
 

drivers/media/dvb/dvb-usb/dvb-usb-init.c

@@ -154,12 +154,11 @@ int dvb_usb_device_init(struct usb_interface *intf, struct dvb_usb_properties
 	}
 
 	info("found a '%s' in warm state.",desc->name);
-	d = kmalloc(sizeof(struct dvb_usb_device),GFP_KERNEL);
+		d = kzalloc(sizeof(struct dvb_usb_device),GFP_KERNEL);
 	if (d == NULL) {
 		err("no memory for 'struct dvb_usb_device'");
 		return ret;
 	}
-	memset(d,0,sizeof(struct dvb_usb_device));
 
 	d->udev = udev;
 	memcpy(&d->props,props,sizeof(struct dvb_usb_properties));
@@ -167,13 +166,12 @@ int dvb_usb_device_init(struct usb_interface *intf, struct dvb_usb_properties
 	d->owner = owner;
 
 	if (d->props.size_of_priv > 0) {
-		d->priv = kmalloc(d->props.size_of_priv,GFP_KERNEL);
+			d->priv = kzalloc(d->props.size_of_priv,GFP_KERNEL);
 		if (d->priv == NULL) {
 			err("no memory for priv in 'struct dvb_usb_device'");
 			kfree(d);
 			return -ENOMEM;
 		}
-		memset(d->priv,0,d->props.size_of_priv);
 	}
 
 	usb_set_intfdata(intf, d);

drivers/media/dvb/dvb-usb/dvb-usb-urb.c

@@ -175,15 +175,13 @@ static int dvb_usb_allocate_stream_buffers(struct dvb_usb_device *d, int num, un
 
 	deb_mem("all in all I will use %lu bytes for streaming\n",num*size);
 
-	if ((d->buf_list = kmalloc(num*sizeof(u8 *), GFP_ATOMIC)) == NULL)
+	if ((d->buf_list = kcalloc(num, sizeof(u8 *), GFP_ATOMIC)) == NULL)
 		return -ENOMEM;
 
-	if ((d->dma_addr = kmalloc(num*sizeof(dma_addr_t), GFP_ATOMIC)) == NULL) {
+	if ((d->dma_addr = kcalloc(num, sizeof(dma_addr_t), GFP_ATOMIC)) == NULL) {
 		kfree(d->buf_list);
 		return -ENOMEM;
 	}
-	memset(d->buf_list,0,num*sizeof(u8 *));
-	memset(d->dma_addr,0,num*sizeof(dma_addr_t));
 
 	d->state |= DVB_USB_STATE_URB_BUF;
 
@@ -285,10 +283,9 @@ int dvb_usb_urb_init(struct dvb_usb_device *d)
 	usb_clear_halt(d->udev,usb_rcvbulkpipe(d->udev,d->props.urb.endpoint));
 
 	/* allocate the array for the data transfer URBs */
-	d->urb_list = kmalloc(d->props.urb.count * sizeof(struct urb *),GFP_KERNEL);
+	d->urb_list = kzalloc(d->props.urb.count * sizeof(struct urb *),GFP_KERNEL);
 	if (d->urb_list == NULL)
 		return -ENOMEM;
-	memset(d->urb_list,0,d->props.urb.count * sizeof(struct urb *));
 	d->state |= DVB_USB_STATE_URB_LIST;
 
 	switch (d->props.urb.type) {

drivers/media/dvb/dvb-usb/vp702x-fe.c

@@ -281,10 +281,9 @@ static struct dvb_frontend_ops vp702x_fe_ops;
 
 struct dvb_frontend * vp702x_fe_attach(struct dvb_usb_device *d)
 {
-	struct vp702x_fe_state *s = kmalloc(sizeof(struct vp702x_fe_state), GFP_KERNEL);
+	struct vp702x_fe_state *s = kzalloc(sizeof(struct vp702x_fe_state), GFP_KERNEL);
 	if (s == NULL)
 		goto error;
-	memset(s,0,sizeof(struct vp702x_fe_state));
 
 	s->d = d;
 	s->fe.ops = &vp702x_fe_ops;

drivers/media/dvb/dvb-usb/vp7045-fe.c

@@ -145,10 +145,9 @@ static struct dvb_frontend_ops vp7045_fe_ops;
 
 struct dvb_frontend * vp7045_fe_attach(struct dvb_usb_device *d)
 {
-	struct vp7045_fe_state *s = kmalloc(sizeof(struct vp7045_fe_state), GFP_KERNEL);
+	struct vp7045_fe_state *s = kzalloc(sizeof(struct vp7045_fe_state), GFP_KERNEL);
 	if (s == NULL)
 		goto error;
-	memset(s,0,sizeof(struct vp7045_fe_state));
 
 	s->d = d;
 	s->fe.ops = &vp7045_fe_ops;

drivers/media/dvb/frontends/bcm3510.c

@@ -782,10 +782,9 @@ struct dvb_frontend* bcm3510_attach(const struct bcm3510_config *config,
 	bcm3510_register_value v;
 
 	/* allocate memory for the internal state */
-	state = kmalloc(sizeof(struct bcm3510_state), GFP_KERNEL);
+	state = kzalloc(sizeof(struct bcm3510_state), GFP_KERNEL);
 	if (state == NULL)
 		goto error;
-	memset(state,0,sizeof(struct bcm3510_state));
 
 	/* setup the state */
 

drivers/media/dvb/frontends/dib3000mb.c

@@ -700,10 +700,9 @@ struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
 	struct dib3000_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = kmalloc(sizeof(struct dib3000_state), GFP_KERNEL);
+	state = kzalloc(sizeof(struct dib3000_state), GFP_KERNEL);
 	if (state == NULL)
 		goto error;
-	memset(state,0,sizeof(struct dib3000_state));
 
 	/* setup the state */
 	state->i2c = i2c;

drivers/media/dvb/frontends/dib3000mc.c

@@ -832,10 +832,9 @@ struct dvb_frontend* dib3000mc_attach(const struct dib3000_config* config,
 	u16 devid;
 
 	/* allocate memory for the internal state */
-	state = kmalloc(sizeof(struct dib3000_state), GFP_KERNEL);
+	state = kzalloc(sizeof(struct dib3000_state), GFP_KERNEL);
 	if (state == NULL)
 		goto error;
-	memset(state,0,sizeof(struct dib3000_state));
 
 	/* setup the state */
 	state->i2c = i2c;

drivers/media/dvb/frontends/lgdt330x.c

@@ -714,10 +714,9 @@ struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config,
 	u8 buf[1];
 
 	/* Allocate memory for the internal state */
-	state = (struct lgdt330x_state*) kmalloc(sizeof(struct lgdt330x_state), GFP_KERNEL);
+	state = kzalloc(sizeof(struct lgdt330x_state), GFP_KERNEL);
 	if (state == NULL)
 		goto error;
-	memset(state,0,sizeof(*state));
 
 	/* Setup the state */
 	state->config = config;

drivers/media/dvb/frontends/mt352.c

@@ -535,9 +535,8 @@ struct dvb_frontend* mt352_attach(const struct mt352_config* config,
 	struct mt352_state* state = NULL;
 
 	/* allocate memory for the internal state */
-	state = kmalloc(sizeof(struct mt352_state), GFP_KERNEL);
+	state = kzalloc(sizeof(struct mt352_state), GFP_KERNEL);
 	if (state == NULL) goto error;
-	memset(state,0,sizeof(*state));
 
 	/* setup the state */
 	state->i2c = i2c;

drivers/media/dvb/frontends/nxt200x.c

@@ -1110,10 +1110,9 @@ struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
 	u8 buf [] = {0,0,0,0,0};
 
 	/* allocate memory for the internal state */
-	state = (struct nxt200x_state*) kmalloc(sizeof(struct nxt200x_state), GFP_KERNEL);
+	state = kzalloc(sizeof(struct nxt200x_state), GFP_KERNEL);
 	if (state == NULL)
 		goto error;
-	memset(state,0,sizeof(*state));
 
 	/* setup the state */
 	state->config = config;

drivers/media/dvb/pluto2/pluto2.c

@@ -584,11 +584,10 @@ static int __devinit pluto2_probe(struct pci_dev *pdev,
 	struct dmx_demux *dmx;
 	int ret = -ENOMEM;
 
-	pluto = kmalloc(sizeof(struct pluto), GFP_KERNEL);
+	pluto = kzalloc(sizeof(struct pluto), GFP_KERNEL);
 	if (!pluto)
 		goto out;
 
-	memset(pluto, 0, sizeof(struct pluto));
 	pluto->pdev = pdev;
 
 	ret = pci_enable_device(pdev);

drivers/media/dvb/ttpci/av7110.c

@@ -2565,14 +2565,12 @@ static int av7110_attach(struct saa7146_dev* dev, struct saa7146_pci_extension_d
 	}
 
 	/* prepare the av7110 device struct */
-	av7110 = kmalloc(sizeof(struct av7110), GFP_KERNEL);
+	av7110 = kzalloc(sizeof(struct av7110), GFP_KERNEL);
 	if (!av7110) {
 		dprintk(1, "out of memory\n");
 		return -ENOMEM;
 	}
 
-	memset(av7110, 0, sizeof(struct av7110));
-
 	av7110->card_name = (char*) pci_ext->ext_priv;
 	av7110->dev = dev;
 	dev->ext_priv = av7110;

drivers/media/dvb/ttpci/budget-av.c

@@ -1027,11 +1027,9 @@ static int budget_av_attach(struct saa7146_dev *dev, struct saa7146_pci_extensio
 
 	dprintk(2, "dev: %p\n", dev);
 
-	if (!(budget_av = kmalloc(sizeof(struct budget_av), GFP_KERNEL)))
+	if (!(budget_av = kzalloc(sizeof(struct budget_av), GFP_KERNEL)))
 		return -ENOMEM;
 
-	memset(budget_av, 0, sizeof(struct budget_av));
-
 	budget_av->has_saa7113 = 0;
 	budget_av->budget.ci_present = 0;