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iio:kfifo_buf: Use wake_up_interruptible_poll() 

Use wake_up_interruptible_poll() instead of wake_up_interruptible() to only wake
up those threads that listen for input poll notifications.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2013-09-15 16:31:00 +01:00 committed by Jonathan Cameron
parent 705ee2c98a
commit 623c334c1a
1 changed files with 2 additions and 1 deletions
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3
drivers/iio/kfifo_buf.c
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@ -7,6 +7,7 @@
#include <linux/mutex.h>
#include <linux/iio/kfifo_buf.h>
#include <linux/sched.h>
#include <linux/poll.h>
struct iio_kfifo {
struct iio_buffer buffer;
@ -102,7 +103,7 @@ static int iio_store_to_kfifo(struct iio_buffer *r,
if (ret != 1)
return -EBUSY;
r->stufftoread = true;
wake_up_interruptible(&r->pollq);
wake_up_interruptible_poll(&r->pollq, POLLIN | POLLRDNORM);
return 0;
}