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(&current->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;