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@xxxxxxxxxx>
---
drivers/iio/kfifo_buf.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index a923c78..1bea41b 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -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;
}
--
1.8.0
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