From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964777AbWAZQdD (ORCPT ); Thu, 26 Jan 2006 11:33:03 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964793AbWAZQdC (ORCPT ); Thu, 26 Jan 2006 11:33:02 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:26241 "EHLO mx2.mail.elte.hu") by vger.kernel.org with ESMTP id S964777AbWAZQdA (ORCPT ); Thu, 26 Jan 2006 11:33:00 -0500 Date: Thu, 26 Jan 2006 17:33:39 +0100 From: Ingo Molnar To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: [patch] warn if free_irq() is called from IRQ context Message-ID: <20060126163339.GA5911@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: -2.2 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.2 required=5.9 tests=ALL_TRUSTED,AWL autolearn=no SpamAssassin version=3.0.3 -2.8 ALL_TRUSTED Did not pass through any untrusted hosts 0.6 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org warn if free_irq() is called in IRQ context - free_irq() can execute /proc VFS work, which must not be done in IRQ context. Signed-off-by: Ingo Molnar ---- kernel/irq/manage.c | 1 + 1 files changed, 1 insertion(+) Index: linux/kernel/irq/manage.c =================================================================== --- linux.orig/kernel/irq/manage.c +++ linux/kernel/irq/manage.c @@ -263,6 +263,7 @@ void free_irq(unsigned int irq, void *de unsigned long flags; irqreturn_t (*handler)(int, void *, struct pt_regs *) = NULL; + WARN_ON(in_interrupt()); if (irq >= NR_IRQS) return;