diff options
Diffstat (limited to 'drivers/media/video/video-buf.c')
| -rw-r--r-- | drivers/media/video/video-buf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c index 6504a586684..459786ff459 100644 --- a/drivers/media/video/video-buf.c +++ b/drivers/media/video/video-buf.c @@ -148,6 +148,8 @@ int videobuf_dma_init_user(struct videobuf_dmabuf *dma, int direction, dprintk(1,"init user [0x%lx+0x%lx => %d pages]\n", data,size,dma->nr_pages); + dma->varea = (void *) data; + down_read(¤t->mm->mmap_sem); err = get_user_pages(current,current->mm, data & PAGE_MASK, dma->nr_pages, @@ -285,6 +287,7 @@ int videobuf_dma_free(struct videobuf_dmabuf *dma) vfree(dma->vmalloc); dma->vmalloc = NULL; + dma->varea = NULL; if (dma->bus_addr) { dma->bus_addr = 0; |