github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-08-01 12:11:59 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

leds: leds-qti-flash: update locking used for trigger iteration

Browse Source 
Commit 2a5a8fa8b2 ("leds: trigger: use RCU to protect the
led_cdevs list") changed the locking mechanism for the led_cdevs
list.  Update the locking in the leds-qti-flash driver to match.

Change-Id: I54b044052134b29f56cbf18ad2d37832d89eba55
Signed-off-by: David Collins <quic_collinsd@quicinc.com>
This commit is contained in:
David Collins 2022-05-27 15:23:15 -07:00
parent 17ef00fb6d
commit d356880fb9
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/leds/leds-qti-flash.c
View File

@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.
* Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#define pr_fmt(fmt) "qti-flash: %s: " fmt, __func__
@ -819,15 +819,15 @@ static struct led_classdev *trigger_to_lcdev(struct led_trigger *trig)
{
struct led_classdev *led_cdev;
read_lock(&trig->leddev_list_lock);
list_for_each_entry(led_cdev, &trig->led_cdevs, trig_list) {
rcu_read_lock();
list_for_each_entry_rcu(led_cdev, &trig->led_cdevs, trig_list) {
if (!strcmp(led_cdev->default_trigger, trig->name)) {
read_unlock(&trig->leddev_list_lock);
rcu_read_unlock();
return led_cdev;
}
}
rcu_read_unlock();
read_unlock(&trig->leddev_list_lock);
return NULL;
}