Commit 07320c91 authored by Paul Cercueil's avatar Paul Cercueil Committed by Guenter Roeck
Browse files

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: default avatarPaul Cercueil <paul@crapouillou.net>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 9f93aa10

drivers/hwmon/hwmon.c

+1 −1
Original line number Diff line number Diff line
@@ -809,7 +809,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata, 
		hdev->groups = groups;

	}



	if (device_property_present(dev, "label")) {

	if (dev && device_property_present(dev, "label")) {

		err = device_property_read_string(dev, "label", &label);

		if (err < 0)

			goto free_hwmon;