linux-kernel - [PATCH 07/24] Input: sunkbd - use guard notation when pausing serio port

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Message-ID: <20240905041732.2034348-8-dmitry.torokhov@gmail.com>
Date: Wed,  4 Sep 2024 21:17:12 -0700
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: linux-input@...r.kernel.org
Cc: Pali Rohár <pali@...nel.org>,
	Helge Deller <deller@....de>,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>,
	Dexuan Cui <decui@...rosoft.com>,
	Samuel Holland <samuel@...lland.org>,
	Lyude Paul <thatslyude@...il.com>,
	Michal Simek <michal.simek@....com>,
	Hans de Goede <hdegoede@...hat.com>,
	linux-kernel@...r.kernel.org,
	linux-hyperv@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev
Subject: [PATCH 07/24] Input: sunkbd - 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.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 drivers/input/keyboard/sunkbd.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/input/keyboard/sunkbd.c b/drivers/input/keyboard/sunkbd.c
index 72fb46029710..3299e1919b37 100644
--- a/drivers/input/keyboard/sunkbd.c
+++ b/drivers/input/keyboard/sunkbd.c
@@ -241,9 +241,8 @@ static void sunkbd_reinit(struct work_struct *work)
 
 static void sunkbd_enable(struct sunkbd *sunkbd, bool enable)
 {
-	serio_pause_rx(sunkbd->serio);
-	sunkbd->enabled = enable;
-	serio_continue_rx(sunkbd->serio);
+	scoped_guard(serio_pause_rx, sunkbd->serio)
+		sunkbd->enabled = enable;
 
 	if (!enable) {
 		wake_up_interruptible(&sunkbd->wait);
-- 
2.46.0.469.g59c65b2a67-goog