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| author | Alexey Klimov <klimov.linux@gmail.com> | 2009-01-25 20:07:28 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-01-29 09:00:40 -0200 |
| commit | 7f03a5856c1c32ddc7b6b7a31bd43a4ab8e29f90 (patch) | |
| tree | 4b98cae8a7ff9ff9e9c3dff20348a4c867b08664 /drivers/media | |
| parent | 6d9f13c47a009ccbaf40c2e388ab349690dd8000 (diff) | |
| download | linux-3.10-7f03a5856c1c32ddc7b6b7a31bd43a4ab8e29f90.tar.gz linux-3.10-7f03a5856c1c32ddc7b6b7a31bd43a4ab8e29f90.tar.bz2 linux-3.10-7f03a5856c1c32ddc7b6b7a31bd43a4ab8e29f90.zip | |
V4L/DVB (10317): radio-mr800: fix radio->muted and radio->stereo
Move radio->muted and radio->stereo in section where radio mutex is
locked to avoid possible race condition problems or access to memory.
Thanks to David Ellingsworth <david@identd.dyndns.org> for pointing to
this weak place in driver.
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/radio/radio-mr800.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c index 0747dc8862b..fdfc7bf86b9 100644 --- a/drivers/media/radio/radio-mr800.c +++ b/drivers/media/radio/radio-mr800.c @@ -194,10 +194,10 @@ static int amradio_start(struct amradio_device *radio) return retval; } - mutex_unlock(&radio->lock); - radio->muted = 0; + mutex_unlock(&radio->lock); + return retval; } @@ -230,10 +230,10 @@ static int amradio_stop(struct amradio_device *radio) return retval; } - mutex_unlock(&radio->lock); - radio->muted = 1; + mutex_unlock(&radio->lock); + return retval; } @@ -284,10 +284,10 @@ static int amradio_setfreq(struct amradio_device *radio, int freq) return retval; } - mutex_unlock(&radio->lock); - radio->stereo = 0; + mutex_unlock(&radio->lock); + return retval; } |