From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752957Ab3JRKNE (ORCPT ); Fri, 18 Oct 2013 06:13:04 -0400 Received: from exprod5og104.obsmtp.com ([64.18.0.178]:36504 "HELO exprod5og104.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752744Ab3JRKNC (ORCPT ); Fri, 18 Oct 2013 06:13:02 -0400 X-Greylist: delayed 372 seconds by postgrey-1.27 at vger.kernel.org; Fri, 18 Oct 2013 06:13:02 EDT From: Vinayak Kale To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: tglx@linutronix.de, will.deacon@arm.com, Vinayak Kale Subject: [PATCH] genirq: error reporting for non-percpu interrupt in request_percpu_irq() Date: Fri, 18 Oct 2013 15:36:29 +0530 Message-Id: <1382090789-18177-1-git-send-email-vkale@apm.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return a separate error code when a non-percpu interrupt is passed to request_percpu_irq(). Suggested-by: Will Deacon Signed-off-by: Vinayak Kale --- kernel/irq/manage.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 514bcfd..c2713ae 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -1671,10 +1671,12 @@ int request_percpu_irq(unsigned int irq, irq_handler_t handler, return -EINVAL; desc = irq_to_desc(irq); - if (!desc || !irq_settings_can_request(desc) || - !irq_settings_is_per_cpu_devid(desc)) + if (!desc || !irq_settings_can_request(desc)) return -EINVAL; + if (!irq_settings_is_per_cpu_devid(desc)) + return -EPERM; + action = kzalloc(sizeof(struct irqaction), GFP_KERNEL); if (!action) return -ENOMEM; -- 1.7.9.5