From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:58136 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387409AbeIXSeS (ORCPT ); Mon, 24 Sep 2018 14:34:18 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hanna Hawa , Thomas Petazzoni , Vinod Koul , Sasha Levin Subject: [PATCH 4.18 092/235] dmaengine: mv_xor_v2: kill the tasklets upon exit Date: Mon, 24 Sep 2018 13:51:18 +0200 Message-Id: <20180924113114.349238780@linuxfoundation.org> In-Reply-To: <20180924113103.999624566@linuxfoundation.org> References: <20180924113103.999624566@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: 4.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hanna Hawa [ Upstream commit 8bbafed8dd5cfa81071b50ead5cb60367fdef3a9 ] The mv_xor_v2 driver uses a tasklet, initialized during the probe() routine. However, it forgets to cleanup the tasklet using tasklet_kill() function during the remove() routine, which this patch fixes. This prevents the tasklet from potentially running after the module has been removed. Fixes: 19a340b1a820 ("dmaengine: mv_xor_v2: new driver") Signed-off-by: Hanna Hawa Reviewed-by: Thomas Petazzoni Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/dma/mv_xor_v2.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/dma/mv_xor_v2.c +++ b/drivers/dma/mv_xor_v2.c @@ -899,6 +899,8 @@ static int mv_xor_v2_remove(struct platf platform_msi_domain_free_irqs(&pdev->dev); + tasklet_kill(&xor_dev->irq_tasklet); + clk_disable_unprepare(xor_dev->clk); return 0;