From patchwork Fri Jul 25 12:18:23 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 373678 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 454011400A0 for ; Fri, 25 Jul 2014 22:21:00 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760165AbaGYMUq (ORCPT ); Fri, 25 Jul 2014 08:20:46 -0400 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:7698 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760134AbaGYMUp (ORCPT ); Fri, 25 Jul 2014 08:20:45 -0400 Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.14.5/8.14.5) with SMTP id s6PCKhnm018499; Fri, 25 Jul 2014 05:20:43 -0700 Received: from sc-owa04.marvell.com ([199.233.58.150]) by mx0b-0016f401.pphosted.com with ESMTP id 1nb9xmj35e-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Fri, 25 Jul 2014 05:20:43 -0700 Received: from maili.marvell.com (10.93.76.43) by sc-owa02.marvell.com (10.93.76.33) with Microsoft SMTP Server id 8.3.327.1; Fri, 25 Jul 2014 05:20:42 -0700 Received: from xhacker.marvell.com (unknown [10.37.135.102]) by maili.marvell.com (Postfix) with ESMTP id C7A013F703F; Fri, 25 Jul 2014 05:20:41 -0700 (PDT) From: Jisheng Zhang To: , , CC: , , , Jisheng Zhang Subject: [PATCH] PCI: tegra: add missing cleanup in error path and teardown_irq Date: Fri, 25 Jul 2014 20:18:23 +0800 Message-ID: <1406290703-2175-1-git-send-email-jszhang@marvell.com> X-Mailer: git-send-email 2.0.1 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.12.52, 1.0.14, 0.0.0000 definitions=2014-07-25_04:2014-07-25, 2014-07-25, 1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=2 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1407250143 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org We should call tegra_msi_free() to free the msi bit if irq_create_mapping() fails. And we need to dispose the irq mapping during irq teardown. Signed-off-by: Jisheng Zhang --- drivers/pci/host/pci-tegra.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c index 083cf37..695e7b9 100644 --- a/drivers/pci/host/pci-tegra.c +++ b/drivers/pci/host/pci-tegra.c @@ -1203,8 +1203,10 @@ static int tegra_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev, return hwirq; irq = irq_create_mapping(msi->domain, hwirq); - if (!irq) + if (!irq) { + tegra_msi_free(msi, hwirq); return -EINVAL; + } irq_set_msi_desc(irq, desc); @@ -1223,6 +1225,7 @@ static void tegra_msi_teardown_irq(struct msi_chip *chip, unsigned int irq) struct tegra_msi *msi = to_tegra_msi(chip); struct irq_data *d = irq_get_irq_data(irq); + irq_dispose_mapping(irq); tegra_msi_free(msi, d->hwirq); }