* [PATCH] iio: buffer: check if a buffer has been set up when poll is called
@ 2018-02-15 7:19 Stefan Windfeldt-Prytz
0 siblings, 0 replies; only message in thread
From: Stefan Windfeldt-Prytz @ 2018-02-15 7:19 UTC (permalink / raw)
To: jic23; +Cc: knaack.h, lars, ppmeerw, linux-iio, Stefan Windfeldt-Prytz
If no iio buffer has been set up and poll is called return 0.
Change-Id: I79809c366e2206cfea6159ff8b0a12a988ee549f
Signed-off-by: Stefan Windfeldt-Prytz <stefan.windfeldt@axis.com>
---
drivers/iio/industrialio-buffer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 79abf70..cd5bfe3 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -175,7 +175,7 @@ __poll_t iio_buffer_poll(struct file *filp,
struct iio_dev *indio_dev = filp->private_data;
struct iio_buffer *rb = indio_dev->buffer;
- if (!indio_dev->info)
+ if (!indio_dev->info || rb == NULL)
return 0;
poll_wait(filp, &rb->pollq, wait);
--
2.1.4
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2018-02-15 7:19 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-02-15 7:19 [PATCH] iio: buffer: check if a buffer has been set up when poll is called Stefan Windfeldt-Prytz
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.