From patchwork Wed Aug 9 16:16:03 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gustavo A. R. Silva" X-Patchwork-Id: 799890 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3xSHhn6wjnz9s5L for ; Thu, 10 Aug 2017 03:05:45 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752617AbdHIRFn (ORCPT ); Wed, 9 Aug 2017 13:05:43 -0400 Received: from gateway30.websitewelcome.com ([192.185.180.41]:12119 "EHLO gateway30.websitewelcome.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752807AbdHIRFm (ORCPT ); Wed, 9 Aug 2017 13:05:42 -0400 Received: from cm11.websitewelcome.com (cm11.websitewelcome.com [100.42.49.5]) by gateway30.websitewelcome.com (Postfix) with ESMTP id 376E11FB97 for ; Wed, 9 Aug 2017 11:16:04 -0500 (CDT) Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with SMTP id fTdZdDDSu7GnJfTdZdvSso; Wed, 09 Aug 2017 11:15:13 -0500 Received: from [187.192.74.87] (port=56712 helo=embeddedgus) by gator4166.hostgator.com with esmtpa (Exim 4.87) (envelope-from ) id 1dfTeN-00401d-TL; Wed, 09 Aug 2017 11:16:03 -0500 Date: Wed, 9 Aug 2017 11:16:03 -0500 From: "Gustavo A. R. Silva" To: Kishon Vijay Abraham I , Bjorn Helgaas Cc: linux-omap@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, "Gustavo A. R. Silva" Subject: [PATCH] PCI: dwc: dra7xx: fix error return code in dra7xx_pcie_probe() Message-ID: <20170809161603.GA31297@embeddedgus> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 187.192.74.87 X-Exim-ID: 1dfTeN-00401d-TL X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: (embeddedgus) [187.192.74.87]:56712 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 11 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org platform_get_irq() returns an error code, but the pci-dra7xx driver ignores it and always returns -EINVAL. This is not correct and, prevents -EPROBE_DEFER from being propagated properly. Print and propagate the return value of platform_get_irq on failure. This issue was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva Acked-by: Kishon Vijay Abraham I --- drivers/pci/dwc/pci-dra7xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/dwc/pci-dra7xx.c index f2fc5f4..f58e1b4 100644 --- a/drivers/pci/dwc/pci-dra7xx.c +++ b/drivers/pci/dwc/pci-dra7xx.c @@ -616,8 +616,8 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(dev, "missing IRQ resource\n"); - return -EINVAL; + dev_err(dev, "missing IRQ resource: %d\n", irq); + return irq; } res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ti_conf");