This is a note to let you know that I've just added the patch titled
HID: sensor-hub: Move the memset to sensor_hub_get_feature()
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hid-sensor-hub-move-the-memset-to-sensor_hub_get_feature.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 143fca77cce906d35f7a60ccef648e888df589f2 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
Date: Tue, 27 Dec 2016 08:57:59 -0800
Subject: HID: sensor-hub: Move the memset to sensor_hub_get_feature()
From: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hid/hid-sensor-hub.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- 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_se
__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_se
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) ||
Patches currently in stable-queue which might be from srinivas.pandruvada@xxxxxxxxxxxxxxx are
queue-4.9/hid-sensor-hub-move-the-memset-to-sensor_hub_get_feature.patch
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