[patch 2/2] w1: unlock correct lock on error in w1_seq_show()

[Dan Carpenter <dan.carpenter@oracle.com>]

Smatch complains that we don't unlock "master->mutex" on this error
path.  It looks like it is a typo and we unlock ->bus_mutext where
->mutex was intended.

Fixes: d9411e57dc7f ('w1: Add support for DS28EA00 sequence to w1-therm')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index 3351be6..79ecaf8 100644
--- a/drivers/w1/slaves/w1_therm.c
+++ b/drivers/w1/slaves/w1_therm.c
@@ -412,7 +412,7 @@ static ssize_t w1_seq_show(struct device *device,
 	c -= snprintf(buf + PAGE_SIZE - c, c, "%d\n", seq);
 	return PAGE_SIZE - c;
 error:
-	mutex_unlock(&sl->master->bus_mutex);
+	mutex_unlock(&sl->master->mutex);
 	return -EIO;
 }