[3.13.y.z extended stable] Patch "iio: accel: bma180: Fix indio_dev->trig assignment" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    iio: accel: bma180: Fix indio_dev->trig assignment

to the linux-3.13.y-queue branch of the 3.13.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.13.y-queue

This patch is scheduled to be released in version 3.13.11.9.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.13.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From 38a9f2bc545fdd1ae00a06ea01560fddb8020fd8 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada at linux.intel.com>
Date: Fri, 22 Aug 2014 21:48:00 +0100
Subject: iio: accel: bma180: Fix indio_dev->trig assignment

commit 0668a4e4d297328ce08b44d91d160537596115e2 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 at linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23 at kernel.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 drivers/iio/accel/bma180.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 93ff0ba..d079baa 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -566,7 +566,7 @@ static int bma180_probe(struct i2c_client *client,
 	trig->ops = &bma180_trigger_ops;
 	iio_trigger_set_drvdata(trig, indio_dev);
 	data->trig = trig;
-	indio_dev->trig = trig;
+	indio_dev->trig = iio_trigger_get(trig);

 	ret = iio_trigger_register(trig);
 	if (ret)
--
1.9.1