[PATCH 3.13 076/163] iio: inv_mpu6050: Fix indio_dev->trig assignment
Kamal Mostafa
kamal at canonical.com
Thu Oct 9 21:01:41 UTC 2014
3.13.11.9 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Srinivas Pandruvada <srinivas.pandruvada at linux.intel.com>
commit b07e3b3850b2e1f09c19f54d3ed7210d9f529e2c 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/imu/inv_mpu6050/inv_mpu_trigger.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
index 03b9372..926fcce 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
@@ -135,7 +135,7 @@ int inv_mpu6050_probe_trigger(struct iio_dev *indio_dev)
ret = iio_trigger_register(st->trig);
if (ret)
goto error_free_irq;
- indio_dev->trig = st->trig;
+ indio_dev->trig = iio_trigger_get(st->trig);
return 0;
--
1.9.1
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