From 970255b75d0b54e457091182a7ae3a188ac0c346 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 6 Aug 2014 08:27:11 +0800 Subject: hwmon: (w83627hf) Fix vrm write operation vrm is an u8, so the written value needs to be limited to [0, 255]. Signed-off-by: Axel Lin Signed-off-by: Guenter Roeck --- drivers/hwmon/w83627hf.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/hwmon') diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index c1726be3654c..2f55973a8c4c 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -820,6 +820,9 @@ store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf err = kstrtoul(buf, 10, &val); if (err) return err; + + if (val > 255) + return -EINVAL; data->vrm = val; return count; -- cgit v1.2.3-58-ga151