From: Qianggui Song <qianggui.song@amlogic.com>
Date: Wed, 11 Sep 2019 09:22:50 +0000 (+0800)
Subject: ir: fix coverity unchecked return value issue [1/1]
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=82d71fb81ea15c6152b23c44949b4d50c4eef6d9;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ir: fix coverity unchecked return value issue [1/1]

PD#SWPL-13969

Problem:
In sysfs.c, return value of class_register is not checked.

Solution:
check return value of class_register

Verify:
local coverity check

Change-Id: If8deb3e388e784650e4812257143c3ac919c2d9a
Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
---

diff --git a/drivers/amlogic/input/remote/sysfs.c b/drivers/amlogic/input/remote/sysfs.c
index a6adb4f190c8..03e8b887b4a2 100644
--- a/drivers/amlogic/input/remote/sysfs.c
+++ b/drivers/amlogic/input/remote/sysfs.c
@@ -523,8 +523,11 @@ static struct class remote_class = {
 int ir_sys_device_attribute_init(struct remote_chip *chip)
 {
 	struct device *dev;
+	int err;
 
-	class_register(&remote_class);
+	err = class_register(&remote_class);
+	if (unlikely(err))
+		return err;
 
 	dev = device_create(&remote_class,  NULL,
 					chip->chr_devno, chip, chip->dev_name);