[PATCH] drivers/input/mouse:modify mutex_lock before mutex_unlock

[ChunyouTang]

From: tangchunyou <tangchun...@yulong.com>

mutex_lock should before mutex_unlock

Signed-off-by: tangchunyou <tangchun...@yulong.com>
---
 drivers/input/mouse/psmouse-base.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/mouse/psmouse-base.c 
b/drivers/input/mouse/psmouse-base.c
index 0b4a303..d01798c 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -1923,9 +1923,9 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse 
*psmouse, void *data, co
                        return -EIO;
                }
 
-               mutex_unlock(&psmouse_mutex);
-               serio_unregister_child_port(serio);
                mutex_lock(&psmouse_mutex);
+               serio_unregister_child_port(serio);
+               mutex_unlock(&psmouse_mutex);
 
                if (serio->drv != &psmouse_drv) {
                        input_free_device(new_dev);
-- 
1.9.1