From patchwork Wed Jun 17 19:03:49 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 6627731 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 95E619F358 for ; Wed, 17 Jun 2015 19:03:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C873320861 for ; Wed, 17 Jun 2015 19:03:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D2CAC20854 for ; Wed, 17 Jun 2015 19:03:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758020AbbFQTD4 (ORCPT ); Wed, 17 Jun 2015 15:03:56 -0400 Received: from mga11.intel.com ([192.55.52.93]:50857 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752334AbbFQTDz (ORCPT ); Wed, 17 Jun 2015 15:03:55 -0400 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP; 17 Jun 2015 12:03:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,634,1427785200"; d="scan'208";a="509932449" Received: from black.fi.intel.com ([10.237.72.86]) by FMSMGA003.fm.intel.com with ESMTP; 17 Jun 2015 12:03:52 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id BDE286C; Wed, 17 Jun 2015 22:03:51 +0300 (EEST) From: Andy Shevchenko To: linux-kernel@vger.kernel.org, Bjorn Helgaas , linux-pci@vger.kernel.org, Thomas Gleixner , Ingo Molnar , x86@kernel.org Cc: Andy Shevchenko Subject: [PATCH 1/2] x86: intel_mid_pci: propagate actual return code Date: Wed, 17 Jun 2015 22:03:49 +0300 Message-Id: <1434567830-237840-2-git-send-email-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1434567830-237840-1-git-send-email-andriy.shevchenko@linux.intel.com> References: <1434567830-237840-1-git-send-email-andriy.shevchenko@linux.intel.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP mp_map_gsi_to_irq() returns different codes if it fails. intel_mid_pci_irq_enable() hides this under -EBUSY. The patch replaces it by what is actually returned. Signed-off-by: Andy Shevchenko --- arch/x86/pci/intel_mid_pci.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c index 2706230..0af2e78 100644 --- a/arch/x86/pci/intel_mid_pci.c +++ b/arch/x86/pci/intel_mid_pci.c @@ -210,10 +210,12 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) { struct irq_alloc_info info; int polarity; + int ret; if (dev->irq_managed && dev->irq > 0) return 0; + /* Set IRQ polarity */ if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_TANGIER) polarity = 0; /* active high */ else @@ -224,8 +226,9 @@ static int intel_mid_pci_irq_enable(struct pci_dev *dev) * MRST only have IOAPIC, the PCI irq lines are 1:1 mapped to * IOAPIC RTE entries, so we just enable RTE for the device. */ - if (mp_map_gsi_to_irq(dev->irq, IOAPIC_MAP_ALLOC, &info) < 0) - return -EBUSY; + ret = mp_map_gsi_to_irq(dev->irq, IOAPIC_MAP_ALLOC, &info); + if (ret < 0) + return ret; dev->irq_managed = 1;