diff options
| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2016-12-27 08:57:59 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-12 11:39:06 +0100 |
| commit | 5f390df2baf73050b7af522ded2b2e070d21caa2 (patch) | |
| tree | e32b1af87f7605e8661d3bdd83b7a46aed6f92de /drivers/hid | |
| parent | 0c8033357b1d8fc4bba43cf1f87d2f61f3dd3fd2 (diff) | |
| download | linux-rt-5f390df2baf73050b7af522ded2b2e070d21caa2.tar.gz | |
HID: sensor-hub: Move the memset to sensor_hub_get_feature()
commit 143fca77cce906d35f7a60ccef648e888df589f2 upstream.
While applying patch d443a0aa3a29: "HID: hid-sensor-hub: clear memory to
avoid random data", there was some issues in applying correct version of
the patch. This resulted in the breakage of sensor functions as all
request like power-up will be reset by the memset() in the function
sensor_hub_set_feature().
The reset of caller buffer should be in the function
sensor_hub_get_feature(), not in the sensor_hub_set_feature().
Fixes: d443a0aa3a29 ("HID: hid-sensor-hub: clear memory to avoid random data")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-sensor-hub.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c index 60875625cbdf..8f6c35370f66 100644 --- a/drivers/hid/hid-sensor-hub.c +++ b/drivers/hid/hid-sensor-hub.c @@ -212,7 +212,6 @@ int sensor_hub_set_feature(struct hid_sensor_hub_device *hsdev, u32 report_id, __s32 value; int ret = 0; - memset(buffer, 0, buffer_size); mutex_lock(&data->mutex); report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT); if (!report || (field_index >= report->maxfield)) { @@ -256,6 +255,8 @@ int sensor_hub_get_feature(struct hid_sensor_hub_device *hsdev, u32 report_id, int buffer_index = 0; int i; + memset(buffer, 0, buffer_size); + mutex_lock(&data->mutex); report = sensor_hub_report(report_id, hsdev->hdev, HID_FEATURE_REPORT); if (!report || (field_index >= report->maxfield) || |