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authorAxel Lin <axel.lin@ingics.com>2014-08-06 08:25:44 +0800
committerGuenter Roeck <linux@roeck-us.net>2014-08-05 19:44:42 -0700
commit5c570b9573ecabf3ffc9af7f03daa088f2466d7b (patch)
treecff7769a074bc5d3e81541d15fce7e31b1383cbc /drivers/hwmon
parent5e3b5610f921701b235fc9a1bb17c040224bd76e (diff)
hwmon: (vt1211) 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>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/vt1211.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c
index 344b22ec2553..3ea57c3504e2 100644
--- a/drivers/hwmon/vt1211.c
+++ b/drivers/hwmon/vt1211.c
@@ -879,6 +879,9 @@ static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
if (err)
return err;
+ if (val > 255)
+ return -EINVAL;
+
data->vrm = val;
return count;