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authorAxel Lin <axel.lin@ingics.com>2014-08-06 08:28:46 +0800
committerGuenter Roeck <linux@roeck-us.net>2014-08-05 19:44:42 -0700
commit2aeee04df8e0ea4d5b91da630687af1a1d93c941 (patch)
treeee8eaca0117ea92924600fb1faf88d534646fd4b /drivers/hwmon/w83793.c
parentfe04f24b831cf384eda9798e1af642b96ca19d29 (diff)
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hwmon: (w83793) 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/w83793.c')
-rw-r--r--drivers/hwmon/w83793.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index 9d63d71214ca..816aa6caf5d5 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -353,6 +353,9 @@ store_vrm(struct device *dev, struct device_attribute *attr,
if (err)
return err;
+ if (val > 255)
+ return -EINVAL;
+
data->vrm = val;
return count;
}