From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f169.google.com ([209.85.213.169]:62289 "EHLO mail-ig0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422703AbaKNWTH (ORCPT ); Fri, 14 Nov 2014 17:19:07 -0500 Received: by mail-ig0-f169.google.com with SMTP id hn18so538544igb.0 for ; Fri, 14 Nov 2014 14:19:06 -0800 (PST) Date: Fri, 14 Nov 2014 14:19:03 -0800 From: Dmitry Torokhov To: Murali Karicheri Cc: Bjorn Helgaas , Santosh Shilimkar , Arnd Bergmann , Wolfram Sang , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] PCI: keystone: fix error handling of irq_of_parse_and_map Message-ID: <20141114221903.GA38539@dtor-ws> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-pci-owner@vger.kernel.org List-ID: Return value of irq_of_parse_and_map() is unsigned int, with 0 indicating failure, so testing for negative result never works. Signed-off-by: Dmitry Torokhov --- Not tested, found by casual code inspection. drivers/pci/host/pci-keystone.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/host/pci-keystone.c b/drivers/pci/host/pci-keystone.c index 8a27078..f2bd48d 100644 --- a/drivers/pci/host/pci-keystone.c +++ b/drivers/pci/host/pci-keystone.c @@ -197,7 +197,7 @@ static int ks_pcie_get_irq_controller_info(struct keystone_pcie *ks_pcie, */ for (temp = 0; temp < max_host_irqs; temp++) { host_irqs[temp] = irq_of_parse_and_map(*np_temp, temp); - if (host_irqs[temp] < 0) + if (!host_irqs[temp]) break; } if (temp) { -- 2.1.0.rc2.206.gedb03e5 -- Dmitry