linux-kernel - Re: [RFC][PATCH v2 12/31] timers: dma-buf: Use del_timer

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Date:   Thu, 27 Oct 2022 11:20:30 -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>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linaro-mm-sig@...ts.linaro.org
Subject: Re: [RFC][PATCH v2 12/31] timers: dma-buf: 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: Sumit Semwal <sumit.semwal@...aro.org>
Cc: "Christian König" <christian.koenig@....com>
Cc: linux-media@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
Cc: linaro-mm-sig@...ts.linaro.org
Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
---
 drivers/dma-buf/st-dma-fence.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/st-dma-fence.c b/drivers/dma-buf/st-dma-fence.c
index fb6e0a6ae2c9..c67b70205b6f 100644
--- a/drivers/dma-buf/st-dma-fence.c
+++ b/drivers/dma-buf/st-dma-fence.c
@@ -412,7 +412,7 @@ static int test_wait_timeout(void *arg)
 
 	err = 0;
 err_free:
-	del_timer_sync(&wt.timer);
+	del_timer_shutdown(&wt.timer);
 	destroy_timer_on_stack(&wt.timer);
 	dma_fence_signal(wt.f);
 	dma_fence_put(wt.f);
-- 
2.35.1