From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751906AbdKHB50 (ORCPT ); Tue, 7 Nov 2017 20:57:26 -0500 Received: from out1.zte.com.cn ([202.103.147.172]:42002 "EHLO mxct.zte.com.cn" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751079AbdKHB5Y (ORCPT ); Tue, 7 Nov 2017 20:57:24 -0500 From: Wen Yang To: tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, wen.yang99@zte.com.cn, jiang.biao2@zte.com.cn, zhong.weidong@zte.com.cn Subject: [PATCH] irq/proc: throw error number when irq_set_affinity fails in write_irq_affinity() Date: Wed, 8 Nov 2017 09:55:03 +0800 Message-Id: <1510106103-184761-1-git-send-email-wen.yang99@zte.com.cn> X-Mailer: git-send-email 1.8.3.1 X-MIMETrack: Itemize by SMTP Server on SZSMTP06/server/zte_ltd(Release 8.5.3FP6|November 21, 2013) at 2017-11-08 09:57:16, Serialize by Router on notes_smtp/zte_ltd(Release 9.0.1FP7|August 17, 2016) at 2017-11-08 09:57:03, Serialize complete at 2017-11-08 09:57:03 X-MAIL: mse01.zte.com.cn vA81vAQV036447 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When irq_set_affinity() fails in write_irq_affinity(), it'll not throw error number like, https://bugzilla.kernel.org/show_bug.cgi?id=197795 This patch should fix that. Signed-off-by: Wen Yang Reviewed-by: Jiang Biao --- kernel/irq/proc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 7f9642a..574d41c 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -154,8 +154,9 @@ static ssize_t write_irq_affinity(int type, struct file *file, */ err = irq_select_affinity_usr(irq) ? -EINVAL : count; } else { - irq_set_affinity(irq, new_value); - err = count; + err = irq_set_affinity(irq, new_value); + if(!err) + err = count; } free_cpumask: -- 1.8.3.1