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-rw-r--r--drivers/hwmon/adm1029.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c
index e9fe4fc3489e..e561279aea21 100644
--- a/drivers/hwmon/adm1029.c
+++ b/drivers/hwmon/adm1029.c
@@ -108,7 +108,7 @@ static const u8 ADM1029_REG_FAN_DIV[] = {
struct adm1029_data {
struct i2c_client *client;
- struct mutex update_lock;
+ struct mutex update_lock; /* protect register access */
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */