diff options
| author | Wei Yongjun <weiyongjun1@huawei.com> | 2018-12-26 11:28:24 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-23 09:06:42 +0100 |
| commit | 48dc41afef9fe5b63a5fbc82852bb6a913f5a99c (patch) | |
| tree | 8f46cb0aa0c3d0106290dd59e5ef24048432a278 /drivers/hwmon | |
| parent | 58cdc5947af63eb33fd631803101d37e5d4b4301 (diff) | |
hwmon: (lm80) Fix missing unlock on error in set_fan_div()
[ Upstream commit 07bd14ccc3049f9c0147a91a4227a571f981601a ]
Add the missing unlock before return from function set_fan_div()
in the error handling case.
Fixes: c9c63915519b ("hwmon: (lm80) fix a missing check of the status of SMBus read")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/lm80.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c index 0e30fa00204c..f9b8e3e23a8e 100644 --- a/drivers/hwmon/lm80.c +++ b/drivers/hwmon/lm80.c @@ -393,8 +393,10 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, } rv = lm80_read_value(client, LM80_REG_FANDIV); - if (rv < 0) + if (rv < 0) { + mutex_unlock(&data->update_lock); return rv; + } reg = (rv & ~(3 << (2 * (nr + 1)))) | (data->fan_div[nr] << (2 * (nr + 1))); lm80_write_value(client, LM80_REG_FANDIV, reg); |