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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2016-12-27 08:57:59 -0800
committerJiri Kosina <jkosina@suse.cz>2017-01-02 14:01:30 +0100
commit143fca77cce906d35f7a60ccef648e888df589f2 (patch)
treeb08f1ce713d5a014824ac8f9a3762468ad987ce5 /drivers/hid
parent8aa2cc7e747881d1fd52db28261b201d4e3e5565 (diff)
downloadlinux-143fca77cce906d35f7a60ccef648e888df589f2.tar.bz2
HID: sensor-hub: Move the memset to sensor_hub_get_feature()
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") Cc: Stable <stable@vger.kernel.org> # 4.9+ Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-sensor-hub.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 5c925228847c..4ef73374a8f9 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) ||