diff options
| author | Darshana Padmadas <darshanapadmadas@gmail.com> | 2015-03-28 12:07:14 +0530 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-04-24 17:13:53 -0400 |
| commit | cfb769a843e50fd6d930a6655cdf2afd9bc0b0ab (patch) | |
| tree | 79720f9f38b62bf2626753d4536b6060a922b84b /drivers/iio | |
| parent | dcf72cd6133cd00f2cbdaf97a535187c222745c1 (diff) | |
iio: imu: Use iio_trigger_get for indio_dev->trig assignment
[ Upstream commit 4ce7ca89d6e8eae9e201cd0e972ba323f33e2fb4 ]
This patch uses iio_trigger_get to increment the reference
count of trigger device, to avoid incorrect assignment.
Can result in a null pointer dereference during removal if the
trigger has been changed before removal.
This patch refers to a similar situation encountered through the
following discussion:
http://www.spinics.net/lists/linux-iio/msg13669.html
Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/imu/adis_trigger.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/imu/adis_trigger.c b/drivers/iio/imu/adis_trigger.c index e0017c22bb9c..f53e9a803a0e 100644 --- a/drivers/iio/imu/adis_trigger.c +++ b/drivers/iio/imu/adis_trigger.c @@ -60,7 +60,7 @@ int adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev) iio_trigger_set_drvdata(adis->trig, adis); ret = iio_trigger_register(adis->trig); - indio_dev->trig = adis->trig; + indio_dev->trig = iio_trigger_get(adis->trig); if (ret) goto error_free_irq; |