diff options
| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2013-10-30 22:48:00 +0000 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2013-11-02 19:07:06 +0000 |
| commit | ec7f68e07bf10198717b7824c78201b46bbf1956 (patch) | |
| tree | ef26e0299c81501e6ba01e2c008578716e77cefb /drivers/iio/magnetometer | |
| parent | 00582bf8e7ed30aadbd935e430143fa18f316f8d (diff) | |
| download | talos-obmc-linux-ec7f68e07bf10198717b7824c78201b46bbf1956.tar.gz talos-obmc-linux-ec7f68e07bf10198717b7824c78201b46bbf1956.zip | |
iio: hid_Sensors: fix crash during trigger unregister
We can't store the trigger instance created by iio_trigger_alloc, in
trig field of iio_device structure. This needs to be stored in the
driver private data. Othewise it can result in crash during module
unload. Hence created a trig_ptr in the common data structure
for each HID sensor IIO driver and storing here.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/magnetometer')
| -rw-r--r-- | drivers/iio/magnetometer/hid-sensor-magn-3d.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c index 2634920562fb..b26e1028a0a0 100644 --- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c +++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c @@ -351,7 +351,7 @@ static int hid_magn_3d_probe(struct platform_device *pdev) error_iio_unreg: iio_device_unregister(indio_dev); error_remove_trigger: - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&magn_state->common_attributes); error_unreg_buffer_funcs: iio_triggered_buffer_cleanup(indio_dev); error_free_dev_mem: @@ -364,10 +364,11 @@ static int hid_magn_3d_remove(struct platform_device *pdev) { struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data; struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct magn_3d_state *magn_state = iio_priv(indio_dev); sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D); iio_device_unregister(indio_dev); - hid_sensor_remove_trigger(indio_dev); + hid_sensor_remove_trigger(&magn_state->common_attributes); iio_triggered_buffer_cleanup(indio_dev); kfree(indio_dev->channels); |
