linux-kernel - Re: [RFC][PATCH v2 15/31] timers: Input: Use del_timer

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Date:   Thu, 27 Oct 2022 11:21:17 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Stephen Boyd <sboyd@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Pali Rohár <pali@...nel.org>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
        Helge Deller <deller@....de>, Tony Lindgren <tony@...mide.com>,
        Arnd Bergmann <arnd@...db.de>, linux-input@...r.kernel.org,
        linux-parisc@...r.kernel.org
Subject: Re: [RFC][PATCH v2 15/31] timers: Input: Use del_timer_shutdown()
 before freeing timer

[
  quilt mail --send still can't handle unicode characters.
    Here's the patch again
]

From: "Steven Rostedt (Google)" <rostedt@...dmis.org>

Before a timer is freed, del_timer_shutdown() must be called.

Link: https://lore.kernel.org/all/20220407161745.7d6754b3@gandalf.local.home/

Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: "Pali Rohár" <pali@...nel.org>
Cc: "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>
Cc: Helge Deller <deller@....de>
Cc: Tony Lindgren <tony@...mide.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: linux-input@...r.kernel.org
Cc: linux-parisc@...r.kernel.org
Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
---
 drivers/input/keyboard/locomokbd.c   | 2 +-
 drivers/input/keyboard/omap-keypad.c | 2 +-
 drivers/input/mouse/alps.c           | 2 +-
 drivers/input/serio/hil_mlc.c        | 2 +-
 drivers/input/serio/hp_sdc.c         | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/input/keyboard/locomokbd.c b/drivers/input/keyboard/locomokbd.c
index dae053596572..aabd1f6a986a 100644
--- a/drivers/input/keyboard/locomokbd.c
+++ b/drivers/input/keyboard/locomokbd.c
@@ -310,7 +310,7 @@ static void locomokbd_remove(struct locomo_dev *dev)
 
 	free_irq(dev->irq[0], locomokbd);
 
-	del_timer_sync(&locomokbd->timer);
+	del_timer_shutdown(&locomokbd->timer);
 
 	input_unregister_device(locomokbd->input);
 	locomo_set_drvdata(dev, NULL);
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index 57447d6c9007..39974158961d 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -296,7 +296,7 @@ static int omap_kp_remove(struct platform_device *pdev)
 	omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT);
 	free_irq(omap_kp->irq, omap_kp);
 
-	del_timer_sync(&omap_kp->timer);
+	del_timer_shutdown(&omap_kp->timer);
 	tasklet_kill(&kp_tasklet);
 
 	/* unregister everything */
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 4a6b33bbe7ea..4d402e75aca8 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -2970,7 +2970,7 @@ static void alps_disconnect(struct psmouse *psmouse)
 	struct alps_data *priv = psmouse->private;
 
 	psmouse_reset(psmouse);
-	del_timer_sync(&priv->timer);
+	del_timer_shutdown(&priv->timer);
 	if (priv->dev2)
 		input_unregister_device(priv->dev2);
 	if (!IS_ERR_OR_NULL(priv->dev3))
diff --git a/drivers/input/serio/hil_mlc.c b/drivers/input/serio/hil_mlc.c
index d36e89d6fc54..33fc73da8e54 100644
--- a/drivers/input/serio/hil_mlc.c
+++ b/drivers/input/serio/hil_mlc.c
@@ -1017,7 +1017,7 @@ static int __init hil_mlc_init(void)
 
 static void __exit hil_mlc_exit(void)
 {
-	del_timer_sync(&hil_mlcs_kicker);
+	del_timer_shutdown(&hil_mlcs_kicker);
 	tasklet_kill(&hil_mlcs_tasklet);
 }
 
diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c
index 13eacf6ab431..49e5884df801 100644
--- a/drivers/input/serio/hp_sdc.c
+++ b/drivers/input/serio/hp_sdc.c
@@ -980,7 +980,7 @@ static void hp_sdc_exit(void)
 	free_irq(hp_sdc.irq, &hp_sdc);
 	write_unlock_irq(&hp_sdc.lock);
 
-	del_timer_sync(&hp_sdc.kicker);
+	del_timer_shutdown(&hp_sdc.kicker);
 
 	tasklet_kill(&hp_sdc.task);
 
-- 
2.35.1