linux-kernel - [RFC][PATCH v2 10/31] timers: ipmi: Use del_timer

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Date:   Thu, 27 Oct 2022 11:05:35 -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>,
        Corey Minyard <minyard@....org>,
        openipmi-developer@...ts.sourceforge.net
Subject: [RFC][PATCH v2 10/31] timers: ipmi: Use del_timer_shutdown() before freeing timer

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: Corey Minyard <minyard@....org>
Cc: openipmi-developer@...ts.sourceforge.net
Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
---
 drivers/char/ipmi/ipmi_msghandler.c | 2 +-
 drivers/char/ipmi/ipmi_ssif.c       | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 49a1707693c9..b577f66f3ca6 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -5540,7 +5540,7 @@ static void __exit cleanup_ipmi(void)
 		 * here.
 		 */
 		atomic_set(&stop_operation, 1);
-		del_timer_sync(&ipmi_timer);
+		del_timer_shutdown(&ipmi_timer);
 
 		initialized = false;
 
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c
index e1072809fe31..bb4df879a5ab 100644
--- a/drivers/char/ipmi/ipmi_ssif.c
+++ b/drivers/char/ipmi/ipmi_ssif.c
@@ -1273,8 +1273,8 @@ static void shutdown_ssif(void *send_info)
 		schedule_timeout(1);
 
 	ssif_info->stopping = true;
-	del_timer_sync(&ssif_info->watch_timer);
-	del_timer_sync(&ssif_info->retry_timer);
+	del_timer_shutdown(&ssif_info->watch_timer);
+	del_timer_shutdown(&ssif_info->retry_timer);
 	if (ssif_info->thread) {
 		complete(&ssif_info->wake_thread);
 		kthread_stop(ssif_info->thread);
-- 
2.35.1