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| author | Axel Lin <axel.lin@ingics.com> | 2014-08-06 04:24:00 +0400 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2014-08-06 06:44:42 +0400 |
| commit | fa642d9d6e502fbdbd1122a6a247c8ad17063a29 (patch) | |
| tree | bd56997463057d2127fdd6777d70ecf65e668c38 | |
| parent | db59ac434230c2d6c051bb314f320ad977e6841d (diff) | |
| download | linux-fa642d9d6e502fbdbd1122a6a247c8ad17063a29.tar.xz | |
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>
| -rw-r--r-- | drivers/hwmon/lm87.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hwmon/lm87.c b/drivers/hwmon/lm87.c index ba1d83d48056..a5e295826aea 100644 --- a/drivers/hwmon/lm87.c +++ b/drivers/hwmon/lm87.c @@ -617,6 +617,10 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, err = kstrtoul(buf, 10, &val); if (err) return err; + + if (val > 255) + return -EINVAL; + data->vrm = val; return count; } |