diff options
| author | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-09-25 18:53:24 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-10-10 07:02:55 +0400 |
| commit | cd4765efdd816ac14075fc7d5adf489502e75e1e (patch) | |
| tree | 6c7a119255c28349fdcd4b64379c545b8f7f3886 /drivers/media | |
| parent | 3bef5e4a1f73898dc8c8433f938d3a8b22f2be22 (diff) | |
| download | linux-cd4765efdd816ac14075fc7d5adf489502e75e1e.tar.xz | |
V4L/DVB (6265): Prevent for calling mmap_free without an allocated buffer
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
http://thread.gmane.org/gmane.comp.video.video4linux/34978/focus=34981
Reviewed-by: Ricardo Cerqueira <v4l@cerqueira.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/videobuf-core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/video/videobuf-core.c b/drivers/media/video/videobuf-core.c index 256501384af7..eb3b98400c1b 100644 --- a/drivers/media/video/videobuf-core.c +++ b/drivers/media/video/videobuf-core.c @@ -880,6 +880,9 @@ int videobuf_mmap_free(struct videobuf_queue *q) int i; int rc; + if (!q) + return 0; + MAGIC_CHECK(q->int_ops->magic,MAGIC_QTYPE_OPS); rc = CALL(q,mmap_free,q); |