From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1092440-1521803496-2-10693369600680519890 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 ensv, 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=1521803495; b=RvdF3QCcsgt2cwY7CT+IhYnNLA1MbREXXmJimOs07oBO1yr i1OQfn2zHQX7780nlkQKZAmAO+NaKlNN2rHSbikTiVdXHN/qdM7BEVhM1c3s8OzG ufGWkTvznG2yUrIUNJgJZZTwxAizyLeRxv4tjRAH4PFpji0BD07/iW5ISUG/iM/F P7vAkSwHrbuh3sx9XlzcesFJkYNbDUke62NhCnXZjlviRFdIEAt3vwbZpfpyx9na wuywQayXv5uRirdVVfQ4DE/G+4REDjRfVB0YC9ZAZgP2jCUBcds1WOer/fidsu1n 6hzqVZbUveH7XR+FXya2pFKrUnfurz975/arwlQ== 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=1521803495; bh=gk32ywtP+IGf2OuWEbtc08f0Zx ebpZwlOBUTjeQMkcI=; b=pSgeeoUIEO0Rq65GvZlLMuYcwEMgiZJsFh//CHX+Ml 9UFStANOaIgybZ+5LYrq3kq2LHOdHhxF4lWVjv19tU5dtRy8JR4nv3KxGh8j64g0 XCxF4sLHBHGBZqqozvRGxQhDycsFzGGDmVikArmZPunxih4hqXi8v8YDipSOsAKV Y85HQExwIE77sVYncMDCDEmE5xxqxKqE8xZN244YX+Cl05YhxMEyWQvOYbhrysPJ gqy6oj68Upgd05eNFdeQBwXoEP9isaO1hcXehwK5qENeK2oGdDbaO51faLgM144/ 3w9kwmT87Zyw3s60xpxZ2Gi2asw9lNG6zbZBLBxxe79Q== 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 S932872AbeCWKLE (ORCPT ); Fri, 23 Mar 2018 06:11:04 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:43666 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932864AbeCWKLC (ORCPT ); Fri, 23 Mar 2018 06:11:02 -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 4.9 148/177] dmaengine: zynqmp_dma: Fix race condition in the probe Date: Fri, 23 Mar 2018 10:54:36 +0100 Message-Id: <20180323094211.727028927@linuxfoundation.org> X-Mailer: git-send-email 2.16.2 In-Reply-To: <20180323094205.090519271@linuxfoundation.org> References: <20180323094205.090519271@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: 4.9-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 @@ -933,7 +933,8 @@ 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);