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Input: elo - use guard notation when pausing serio port

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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.

Link: https://lore.kernel.org/r/20240905041732.2034348-10-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2024-09-04 21:17:14 -07:00
parent 69a2229b05
commit c91ae81e02
1 changed files with 4 additions and 4 deletions
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8
drivers/input/touchscreen/elo.c
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@ -225,10 +225,10 @@ static int elo_command_10(struct elo *elo, unsigned char *packet)
mutex_lock(&elo->cmd_mutex);
serio_pause_rx(elo->serio);
elo->expected_packet = toupper(packet[0]);
init_completion(&elo->cmd_done);
serio_continue_rx(elo->serio);
scoped_guard(serio_pause_rx, elo->serio) {
elo->expected_packet = toupper(packet[0]);
init_completion(&elo->cmd_done);
}
if (serio_write(elo->serio, ELO10_LEAD_BYTE))
goto out;