From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751206AbcEICsY (ORCPT ); Sun, 8 May 2016 22:48:24 -0400 Received: from mail-pf0-f196.google.com ([209.85.192.196]:36125 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751123AbcEICsW (ORCPT ); Sun, 8 May 2016 22:48:22 -0400 Date: Mon, 9 May 2016 11:47:34 +0900 From: Daeseok Youn To: lidza.louina@gmail.com Cc: markh@compro.net, gregkh@linuxfoundation.org, driverdev-devel@linuxdriverproject.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: [PATCH 3/3] staging: dgnc: Need to check for NULL of ch Message-ID: <20160509024734.GA6926@certreview.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org the "ch" from brd structure could be NULL, it need to check for NULL. Signed-off-by: Daeseok Youn --- drivers/staging/dgnc/dgnc_neo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c index 9eae1a6..ba57e95 100644 --- a/drivers/staging/dgnc/dgnc_neo.c +++ b/drivers/staging/dgnc/dgnc_neo.c @@ -380,7 +380,7 @@ static inline void neo_parse_isr(struct dgnc_board *brd, uint port) unsigned long flags; ch = brd->channels[port]; - if (ch->magic != DGNC_CHANNEL_MAGIC) + if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) return; /* Here we try to figure out what caused the interrupt to happen */ -- 2.8.2