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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>
This commit is contained in:
Alexey Klimov 2009-01-25 20:07:28 -03:00 committed by Mauro Carvalho Chehab
parent 6d9f13c47a
commit 7f03a5856c
1 changed files with 6 additions and 6 deletions
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12
drivers/media/radio/radio-mr800.c
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@ -194,10 +194,10 @@ static int amradio_start(struct amradio_device *radio)
return retval; return retval;
} }
mutex_unlock(&radio->lock);
radio->muted = 0; radio->muted = 0;
mutex_unlock(&radio->lock);
return retval; return retval;
} }
@ -230,10 +230,10 @@ static int amradio_stop(struct amradio_device *radio)
return retval; return retval;
} }
mutex_unlock(&radio->lock);
radio->muted = 1; radio->muted = 1;
mutex_unlock(&radio->lock);
return retval; return retval;
} }
@ -284,10 +284,10 @@ static int amradio_setfreq(struct amradio_device *radio, int freq)
return retval; return retval;
} }
mutex_unlock(&radio->lock);
radio->stereo = 0; radio->stereo = 0;
mutex_unlock(&radio->lock);
return retval; return retval;
} }