From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1182439-1521807323-2-13452608208725270576 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='org', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521807322; b=GMvd6xuj2NmYEihHhThggq4jqXy2h9F3SqMddnNEfta2DJS Br8ioLwjHYI/yI8x1iNpR+RRCR10w4f4iXWHYhlMldnVpJ42CdABZal9FiLehQbe 3EhAob1PC+tCeGmqc9ZFeda39xm7l1lM5nkDzS98qILctKzcEmtv5RP8BkOIBS+j NzcRWbO2427lCT/RK8GOklpxV9NlR1+XtPInbzpJLoC54NjUBXHv0XoBuB1mz+i1 ceqncM0HqOCre9aWamOKqdhdgvuzV5ZKGrbyI1RrPlv2J/u/1X8yji+qxiQEqbWL 6pnUcTiY62xtSmxvmW+88i5k1xcGdxxvey1KqWw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-type:sender :list-id; s=arctest; t=1521807322; bh=vJCdFSmpLEe5UjxpBCZwfyOojv /d79h/LKEYEpujGdU=; b=jboQyTn2kJYWIHnx2pfijbGWJsNNMYR3nrWMwgG6bf HiHdgEV+Im2fsINyBxGucBBs5MepJ4cg+L5X/oalfPzChIHtOpkWantW3OBlu5Xd xkPynO7uTn7nNd4Eh4snU94GpeFAy76TIvxkR+T6W1+h4+xCZjMDRgvLnm8OSQHg OPRmFXUMbmdSU3ScXFX2W1yNPgocILoIl57Ul+qnb2brL9gRmj26CwO5dG3rlVT2 w+9hG9ptLB3/FxJUdAyE1c2zqhyxYPcMw6j7pQWmzbCu1pM37Z+D68INUJHrzP1T Spz61aiI0Afc9vxbopjyBDbPvrDsXH5EBDV9RP5DSa+g== ARC-Authentication-Results: i=1; mx2.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 Authentication-Results: mx2.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=linuxfoundation.org; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=linuxfoundation.org header.result=pass header_is_org_domain=yes; x-vs=clean score=-100 state=0 X-ME-VSCategory: clean Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752800AbeCWMO7 (ORCPT ); Fri, 23 Mar 2018 08:14:59 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:34166 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752406AbeCWJ46 (ORCPT ); Fri, 23 Mar 2018 05:56:58 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kedareswara rao Appana , Vinod Koul , Sasha Levin Subject: [PATCH 4.15 29/84] dmaengine: zynqmp_dma: Fix race condition in the probe Date: Fri, 23 Mar 2018 10:53:43 +0100 Message-Id: <20180323095416.293246720@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180323095411.913234798@linuxfoundation.org> References: <20180323095411.913234798@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kedareswara rao Appana [ Upstream commit 5ba080aada5e739165e0f38d5cc3b04c82b323c8 ] Incase of interrupt property is not present, Driver is trying to free an invalid irq, This patch fixes it by adding a check before freeing the irq. Signed-off-by: Kedareswara rao Appana Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/dma/xilinx/zynqmp_dma.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/dma/xilinx/zynqmp_dma.c +++ b/drivers/dma/xilinx/zynqmp_dma.c @@ -838,7 +838,8 @@ static void zynqmp_dma_chan_remove(struc if (!chan) return; - devm_free_irq(chan->zdev->dev, chan->irq, chan); + if (chan->irq) + devm_free_irq(chan->zdev->dev, chan->irq, chan); tasklet_kill(&chan->tasklet); list_del(&chan->common.device_node); clk_disable_unprepare(chan->clk_apb);