diff options
Diffstat (limited to 'linux/drivers/media/video/videobuf-dma-sg.c')
-rw-r--r-- | linux/drivers/media/video/videobuf-dma-sg.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/linux/drivers/media/video/videobuf-dma-sg.c b/linux/drivers/media/video/videobuf-dma-sg.c index 06a219e0d..7d459ed6b 100644 --- a/linux/drivers/media/video/videobuf-dma-sg.c +++ b/linux/drivers/media/video/videobuf-dma-sg.c @@ -163,9 +163,6 @@ static int videobuf_dma_init_user_locked(struct videobuf_dmabuf *dma, dprintk(1,"init user [0x%lx+0x%lx => %d pages]\n", data,size,dma->nr_pages); - dma->varea = (void *) data; - - err = get_user_pages(current,current->mm, data & PAGE_MASK, dma->nr_pages, rw == READ, 1, /* force */ @@ -253,7 +250,7 @@ int videobuf_dma_map(struct videobuf_queue* q, struct videobuf_dmabuf *dma) dma->nr_pages, dma->direction); if (0 == dma->sglen) { printk(KERN_WARNING - "%s: videobuf_map_sg failed\n",__FUNCTION__); + "%s: videobuf_map_sg failed\n",__func__); kfree(dma->sglist); dma->sglist = NULL; dma->sglen = 0; @@ -305,7 +302,6 @@ 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; @@ -476,12 +472,22 @@ static void *__videobuf_alloc(size_t size) videobuf_dma_init(&mem->dma); dprintk(1,"%s: allocated at %p(%ld+%ld) & %p(%ld)\n", - __FUNCTION__,vb,(long)sizeof(*vb),(long)size-sizeof(*vb), + __func__,vb,(long)sizeof(*vb),(long)size-sizeof(*vb), mem,(long)sizeof(*mem)); return vb; } +static void *__videobuf_to_vmalloc (struct videobuf_buffer *buf) +{ + struct videobuf_dma_sg_memory *mem = buf->priv; + BUG_ON(!mem); + + MAGIC_CHECK(mem->magic, MAGIC_SG_MEM); + + return mem->dma.vmalloc; +} + static int __videobuf_iolock (struct videobuf_queue* q, struct videobuf_buffer *vb, struct v4l2_framebuffer *fbuf) @@ -727,6 +733,7 @@ static struct videobuf_qtype_ops sg_ops = { .mmap_mapper = __videobuf_mmap_mapper, .video_copy_to_user = __videobuf_copy_to_user, .copy_stream = __videobuf_copy_stream, + .vmalloc = __videobuf_to_vmalloc, }; void *videobuf_sg_alloc(size_t size) |