[media] drivers/media: Use vzalloc

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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

@@ -1536,12 +1536,11 @@ int __devinit ngene_probe(struct pci_dev *pci_dev,
 	if (pci_enable_device(pci_dev) < 0)
 		return -ENODEV;
 
-	dev = vmalloc(sizeof(struct ngene));
+	dev = vzalloc(sizeof(struct ngene));
 	if (dev == NULL) {
 		stat = -ENOMEM;
 		goto fail0;
 	}
-	memset(dev, 0, sizeof(struct ngene));
 
 	dev->pci_dev = pci_dev;
 	dev->card_info = (struct ngene_info *)id->driver_data;

drivers/media/video/mx3_camera.c

@@ -1186,13 +1186,12 @@ static int __devinit mx3_camera_probe(struct platform_device *pdev)
 		goto egetres;
 	}
 
-	mx3_cam = vmalloc(sizeof(*mx3_cam));
+	mx3_cam = vzalloc(sizeof(*mx3_cam));
 	if (!mx3_cam) {
 		dev_err(&pdev->dev, "Could not allocate mx3 camera object\n");
 		err = -ENOMEM;
 		goto ealloc;
 	}
-	memset(mx3_cam, 0, sizeof(*mx3_cam));
 
 	mx3_cam->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(mx3_cam->clk)) {

drivers/media/video/pwc/pwc-if.c

@@ -287,14 +287,13 @@ static int pwc_allocate_buffers(struct pwc_device *pdev)
 	/* create frame buffers, and make circular ring */
 	for (i = 0; i < default_fbufs; i++) {
 		if (pdev->fbuf[i].data == NULL) {
-			kbuf = vmalloc(PWC_FRAME_SIZE); /* need vmalloc since frame buffer > 128K */
+			kbuf = vzalloc(PWC_FRAME_SIZE); /* need vmalloc since frame buffer > 128K */
 			if (kbuf == NULL) {
 				PWC_ERROR("Failed to allocate frame buffer %d.\n", i);
 				return -ENOMEM;
 			}
 			PWC_DEBUG_MEMORY("Allocated frame buffer %d at %p.\n", i, kbuf);
 			pdev->fbuf[i].data = kbuf;
-			memset(kbuf, 0, PWC_FRAME_SIZE);
 		}
 	}
 

drivers/media/video/videobuf-dma-sg.c

@@ -69,10 +69,9 @@ static struct scatterlist *videobuf_vmalloc_to_sg(unsigned char *virt,
 	struct page *pg;
 	int i;
 
-	sglist = vmalloc(nr_pages * sizeof(*sglist));
+	sglist = vzalloc(nr_pages * sizeof(*sglist));
 	if (NULL == sglist)
 		return NULL;
-	memset(sglist, 0, nr_pages * sizeof(*sglist));
 	sg_init_table(sglist, nr_pages);
 	for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {
 		pg = vmalloc_to_page(virt);