| commit | fa642d9d6e502fbdbd1122a6a247c8ad17063a29 | [log] [tgz] |
|---|---|---|
| author | Axel Lin <axel.lin@ingics.com> | Wed Aug 06 08:24:00 2014 +0800 |
| committer | Guenter Roeck <linux@roeck-us.net> | Tue Aug 05 19:44:42 2014 -0700 |
| tree | bd56997463057d2127fdd6777d70ecf65e668c38 | |
| parent | db59ac434230c2d6c051bb314f320ad977e6841d [diff] [blame] |
hwmon: (lm87) Fix vrm write operation vrm is an u8, so the written value needs to be limited to [0, 255]. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c index ba1d83d..a5e2958 100644 --- a/drivers/hwmon/lm87.c +++ b/drivers/hwmon/lm87.c
@@ -617,6 +617,10 @@ err = kstrtoul(buf, 10, &val); if (err) return err; + + if (val > 255) + return -EINVAL; + data->vrm = val; return count; }