hwmon: Fix possible NULL pointer
authorPaul Cercueil <paul@crapouillou.net>
Mon, 31 Jan 2022 16:27:40 +0000 (16:27 +0000)
committerGuenter Roeck <linux@roeck-us.net>
Mon, 28 Feb 2022 01:03:17 +0000 (17:03 -0800)
commit07320c91565658e117f2f86a190eec9bb64abeb6
treea749d22d51267b70713a2167a660512f01d0c830
parent9f93aa1005fa1b960f10e0ee3ed8c4e697526053
hwmon: Fix possible NULL pointer

The recent addition of the label attribute added some code that read the
"label" device property, without checking first that "dev" was non-NULL.

Fix this issue by first checking that "dev" is non-NULL.

Fixes: ccd98cba6a18 ("hwmon: Add "label" attribute")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
drivers/hwmon/hwmon.c