diff options
| author | Darshana Padmadas <darshanapadmadas@gmail.com> | 2015-03-28 12:07:14 +0530 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2015-04-22 08:58:39 +0200 |
| commit | d85168be83070a890e8bba49cbfe0a20238154db (patch) | |
| tree | c375af95fb8ec3b65080417231d7a38823e044f6 /drivers | |
| parent | 6e106485980c6a4776a38a3941130f623e0b54db (diff) | |
iio: imu: Use iio_trigger_get for indio_dev->trig assignment
commit 4ce7ca89d6e8eae9e201cd0e972ba323f33e2fb4 upstream.
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>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'drivers')
| -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; |