From: David Fries <david@fries.net>

sl->master->mutex and dev->mutex refer to the same mutex variable, but be
consistent and use the same set of pointers for the lock and unlock calls.
 It is less confusing (and one less pointer dereference this way).

Signed-off-by: David Fries <david@fries.net>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/w1/slaves/w1_therm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/w1/slaves/w1_therm.c~w1-w1_therm-consistent-mutex-access-code-cleanup drivers/w1/slaves/w1_therm.c
--- a/drivers/w1/slaves/w1_therm.c~w1-w1_therm-consistent-mutex-access-code-cleanup
+++ a/drivers/w1/slaves/w1_therm.c
@@ -171,7 +171,7 @@ static ssize_t w1_therm_read(struct devi
 	int i, max_trying = 10;
 	ssize_t c = PAGE_SIZE;
 
-	mutex_lock(&sl->master->mutex);
+	mutex_lock(&dev->mutex);
 
 	memset(rom, 0, sizeof(rom));
 
_