From: Hans Verkuil <hans.verk...@cisco.com>
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.verk...@cisco.com>
---
drivers/media/i2c/saa6588.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/i2c/saa6588.c b/drivers/media/i2c/saa6588.c
index 70bc72e..54dd7a0 100644
--- a/drivers/media/i2c/saa6588.c
+++ b/drivers/media/i2c/saa6588.c
@@ -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 --- */
--
1.8.4.3
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