From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Fri, 22 Aug 2014 20:48:00 +0000 (+0100)
Subject: iio: gyro: itg3200: Fix indio_dev->trig assignment
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=4fcf3add79df4540e4c18b389e8ee653bfe39cba;p=linux-edison.git

iio: gyro: itg3200: Fix indio_dev->trig assignment

commit 0b4dce2ee694a991ef38203ec5ff91a738518cb3 upstream.

This can result in wrong reference count for trigger device, call
iio_trigger_get to increment reference.
Refer to http://www.spinics.net/lists/linux-iio/msg13669.html for discussion
with Jonathan.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index 6c43af9bb0a..14917fae2d9 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -135,7 +135,7 @@ int itg3200_probe_trigger(struct iio_dev *indio_dev)
 		goto error_free_irq;
 
 	/* select default trigger */
-	indio_dev->trig = st->trig;
+	indio_dev->trig = iio_trigger_get(st->trig);
 
 	return 0;