Input: alps - use guard notation when pausing serio port

Using guard notation makes the code more compact and error handling
more robust by ensuring that serio ports are resumed in all code paths
when control leaves critical section.

Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20240905041732.2034348-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 4e37fc3..0728b5c 100644 (file)
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -1585,7 +1585,7 @@ static void alps_flush_packet(struct timer_list *t)
        struct alps_data *priv = from_timer(priv, t, timer);
        struct psmouse *psmouse = priv->psmouse;
 
-       serio_pause_rx(psmouse->ps2dev.serio);
+       guard(serio_pause_rx)(psmouse->ps2dev.serio);
 
        if (psmouse->pktcnt == psmouse->pktsize) {
 
@@ -1605,8 +1605,6 @@ static void alps_flush_packet(struct timer_list *t)
                }
                psmouse->pktcnt = 0;
        }
-
-       serio_continue_rx(psmouse->ps2dev.serio);
 }
 
 static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)