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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2012-01-10 09:04:39 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-01-16 12:27:57 +0100 |
| commit | 0cb64f02b8c8f8181d6eaa6d1931fe0bc4195a25 (patch) | |
| tree | 487dbd89371045e8ba591349134659ce07d9e09f /drivers | |
| parent | [media] dvb-core: preserve the delivery system at cache clear (diff) | |
| download | linux-0cb64f02b8c8f8181d6eaa6d1931fe0bc4195a25.tar.xz linux-0cb64f02b8c8f8181d6eaa6d1931fe0bc4195a25.zip | |
[media] cx23885: handle errors from videobuf_dvb_get_frontend()
The error handling in the original code wasn't complete so static
checkers complained about a potential NULL deference.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-video.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 4bbf9bb97bde..c654bdc7ccb2 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -1550,7 +1550,6 @@ static int cx23885_set_freq_via_ops(struct cx23885_dev *dev, struct v4l2_control ctrl; struct videobuf_dvb_frontend *vfe; struct dvb_frontend *fe; - int err = 0; struct analog_parameters params = { .mode = V4L2_TUNER_ANALOG_TV, @@ -1572,8 +1571,10 @@ static int cx23885_set_freq_via_ops(struct cx23885_dev *dev, params.frequency, f->tuner, params.std); vfe = videobuf_dvb_get_frontend(&dev->ts2.frontends, 1); - if (!vfe) - err = -EINVAL; + if (!vfe) { + mutex_unlock(&dev->lock); + return -EINVAL; + } fe = vfe->dvb.frontend; |