aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/video/video-buf.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/video-buf.c')
-rw-r--r--drivers/media/video/video-buf.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c
index 9a6bf287e26a..9ef477523d27 100644
--- a/drivers/media/video/video-buf.c
+++ b/drivers/media/video/video-buf.c
@@ -52,10 +52,9 @@ videobuf_vmalloc_to_sg(unsigned char *virt, int nr_pages)
52 struct page *pg; 52 struct page *pg;
53 int i; 53 int i;
54 54
55 sglist = kmalloc(sizeof(struct scatterlist)*nr_pages, GFP_KERNEL); 55 sglist = kcalloc(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
56 if (NULL == sglist) 56 if (NULL == sglist)
57 return NULL; 57 return NULL;
58 memset(sglist,0,sizeof(struct scatterlist)*nr_pages);
59 for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) { 58 for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {
60 pg = vmalloc_to_page(virt); 59 pg = vmalloc_to_page(virt);
61 if (NULL == pg) 60 if (NULL == pg)
@@ -80,10 +79,9 @@ videobuf_pages_to_sg(struct page **pages, int nr_pages, int offset)
80 79
81 if (NULL == pages[0]) 80 if (NULL == pages[0])
82 return NULL; 81 return NULL;
83 sglist = kmalloc(sizeof(*sglist) * nr_pages, GFP_KERNEL); 82 sglist = kcalloc(nr_pages, sizeof(*sglist), GFP_KERNEL);
84 if (NULL == sglist) 83 if (NULL == sglist)
85 return NULL; 84 return NULL;
86 memset(sglist, 0, sizeof(*sglist) * nr_pages);
87 85
88 if (NULL == pages[0]) 86 if (NULL == pages[0])
89 goto nopage; 87 goto nopage;
@@ -284,9 +282,8 @@ void* videobuf_alloc(unsigned int size)
284{ 282{
285 struct videobuf_buffer *vb; 283 struct videobuf_buffer *vb;
286 284
287 vb = kmalloc(size,GFP_KERNEL); 285 vb = kzalloc(size,GFP_KERNEL);
288 if (NULL != vb) { 286 if (NULL != vb) {
289 memset(vb,0,size);
290 videobuf_dma_init(&vb->dma); 287 videobuf_dma_init(&vb->dma);
291 init_waitqueue_head(&vb->done); 288 init_waitqueue_head(&vb->done);
292 vb->magic = MAGIC_BUFFER; 289 vb->magic = MAGIC_BUFFER;