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-rw-r--r--drivers/media/video/videobuf-dma-contig.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/video/videobuf-dma-contig.c b/drivers/media/video/videobuf-dma-contig.c
index d25f28461da..22c01097e8a 100644
--- a/drivers/media/video/videobuf-dma-contig.c
+++ b/drivers/media/video/videobuf-dma-contig.c
@@ -141,9 +141,11 @@ static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,
struct vm_area_struct *vma;
unsigned long prev_pfn, this_pfn;
unsigned long pages_done, user_address;
+ unsigned int offset;
int ret;
- mem->size = PAGE_ALIGN(vb->size);
+ offset = vb->baddr & ~PAGE_MASK;
+ mem->size = PAGE_ALIGN(vb->size + offset);
mem->is_userptr = 0;
ret = -EINVAL;
@@ -166,7 +168,7 @@ static int videobuf_dma_contig_user_get(struct videobuf_dma_contig_memory *mem,
break;
if (pages_done == 0)
- mem->dma_handle = this_pfn << PAGE_SHIFT;
+ mem->dma_handle = (this_pfn << PAGE_SHIFT) + offset;
else if (this_pfn != (prev_pfn + 1))
ret = -EFAULT;