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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2011-06-28 13:29:02 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-07-01 03:33:47 +0200 |
| commit | 66072d4fa7cb644f1f064e290f8fddfbd8ccd478 (patch) | |
| tree | 97ab6c16f04589118c720fdd314d114d4d9dae5d | |
| parent | [media] media: vb2: reset queued_count value during queue reinitialization (diff) | |
| download | linux-66072d4fa7cb644f1f064e290f8fddfbd8ccd478.tar.xz linux-66072d4fa7cb644f1f064e290f8fddfbd8ccd478.zip | |
[media] media: vb2: fix allocation failure check
__vb2_queue_alloc function returns the number of successfully allocated
buffers. There is no point in checking if the returned value is negative.
If this function returns 0, videobuf2 should just return -ENOMEM to
userspace, because no driver can work without memory buffers.
Reported-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/videobuf2-core.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/video/videobuf2-core.c b/drivers/media/video/videobuf2-core.c index 84f03b25aedb..3015e6000946 100644 --- a/drivers/media/video/videobuf2-core.c +++ b/drivers/media/video/videobuf2-core.c @@ -532,9 +532,9 @@ int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req) /* Finally, allocate buffers and video memory */ ret = __vb2_queue_alloc(q, req->memory, num_buffers, num_planes, plane_sizes); - if (ret < 0) { - dprintk(1, "Memory allocation failed with error: %d\n", ret); - return ret; + if (ret == 0) { + dprintk(1, "Memory allocation failed\n"); + return -ENOMEM; } /* |