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[media] saa6588: after calling CMD_CLOSE, CMD_POLL is broken 

CMD_CLOSE sets data_available_for_read to 1, which is necessary to do the
wakeup call, but it is never reset to 0.

Because of this calling CMD_POLL afterwards will always return that data is
available, even if there isn't any.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2013-12-14 08:28:34 -03:00 committed by Mauro Carvalho Chehab
parent a9fe3beee6
commit af2c5debe1
1 changed files with 1 additions and 0 deletions
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1
drivers/media/i2c/saa6588.c
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@ -402,6 +402,7 @@ static long saa6588_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
case SAA6588_CMD_CLOSE:
s->data_available_for_read = 1;
wake_up_interruptible(&s->read_queue);
s->data_available_for_read = 0;
a->result = 0;
break;
/* --- read() for /dev/radio --- */