linux-kernel - [RFC][PATCH v2 11/31] timers: random: Use del_timer

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Date:   Thu, 27 Oct 2022 11:05:36 -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>,
        "Theodore Tso" <tytso@....edu>,
        "Jason A. Donenfeld" <Jason@...c4.com>
Subject: [RFC][PATCH v2 11/31] timers: random: 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: "Theodore Ts'o" <tytso@....edu>
Cc: "Jason A. Donenfeld" <Jason@...c4.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
---
 drivers/char/random.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 2fe28eeb2f38..b774fdefc840 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1233,7 +1233,7 @@ static void __cold try_to_generate_entropy(void)
 		stack.entropy = random_get_entropy();
 	}
 
-	del_timer_sync(&stack.timer);
+	del_timer_shutdown(&stack.timer);
 	destroy_timer_on_stack(&stack.timer);
 	mix_pool_bytes(&stack.entropy, sizeof(stack.entropy));
 }
-- 
2.35.1