V4L/DVB: v4l videobuf: remove mmap_free callback

Remove the mmap_free callback from struct videobuf_qtype_ops.

All implementations of this callback do the same trivial check: return
-EBUSY if any buffer is mmapped. That can also be tested in the
videobuf core.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 15 deletions

diff --git a/drivers/media/video/videobuf-dma-sg.c b/drivers/media/video/videobuf-dma-sg.c
index c9d946a388e8..7ff275e30092 100644
--- a/drivers/media/video/videobuf-dma-sg.c
+++ b/drivers/media/video/videobuf-dma-sg.c
@@ -548,20 +548,6 @@ static int __videobuf_sync(struct videobuf_queue *q,
         return videobuf_dma_sync(q, &mem->dma);
 }
 
-static int __videobuf_mmap_free(struct videobuf_queue *q)
-{
-        int i;
-
-        for (i = 0; i < VIDEO_MAX_FRAME; i++) {
-                if (q->bufs[i]) {
-                        if (q->bufs[i]->map)
-                                return -EBUSY;
-                }
-        }
-
-        return 0;
-}
-
 static int __videobuf_mmap_mapper(struct videobuf_queue *q,
                          struct vm_area_struct *vma)
 {
@@ -711,7 +697,6 @@ static struct videobuf_qtype_ops sg_ops = {
         .alloc        = __videobuf_alloc,
         .iolock       = __videobuf_iolock,
         .sync         = __videobuf_sync,
-        .mmap_free    = __videobuf_mmap_free,
         .mmap_mapper  = __videobuf_mmap_mapper,
         .video_copy_to_user = __videobuf_copy_to_user,
         .copy_stream  = __videobuf_copy_stream,