From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C9D5C433ED for ; Wed, 19 May 2021 12:05:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6C858611AE for ; Wed, 19 May 2021 12:05:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353282AbhESMGe (ORCPT ); Wed, 19 May 2021 08:06:34 -0400 Received: from lucky1.263xmail.com ([211.157.147.130]:51026 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230226AbhESMGe (ORCPT ); Wed, 19 May 2021 08:06:34 -0400 Received: from localhost (unknown [192.168.167.32]) by lucky1.263xmail.com (Postfix) with ESMTP id 0C4FFD1806; Thu, 20 May 2021 03:52:12 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 Received: from localhost.localdomain (unknown [111.207.172.18]) by smtp.263.net (postfix) whith ESMTP id P30809T139673931085568S1621425646703999_; Wed, 19 May 2021 20:01:00 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: X-RL-SENDER: songqiang@uniontech.com X-SENDER: songqiang@uniontech.com X-LOGIN-NAME: songqiang@uniontech.com X-FST-TO: sam@ravnborg.org X-RCPT-COUNT: 12 X-SENDER-IP: 111.207.172.18 X-ATTACHMENT-NUM: 0 X-System-Flag: 0 From: songqiang To: sam@ravnborg.org, b.zolnierkie@samsung.com, penguin-kernel@i-love.sakura.ne.jp, george.kennedy@oracle.com, arnd@arndb.de, tzimmermann@suse.de, jgg@ziepe.ca, willy@infradead.org Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, songqiang Subject: [PATCH] drivers/video/fbdev/core/fbmem.c: add pointer judgment Date: Wed, 19 May 2021 20:00:28 +0800 Message-Id: <20210519120028.7350-1-songqiang@uniontech.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Signed-off-by: songqiang --- drivers/video/fbdev/core/fbmem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index 072780b0e570..6036ab849475 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1859,6 +1859,9 @@ void fb_set_suspend(struct fb_info *info, int state) { WARN_CONSOLE_UNLOCKED(); + if (!info) { + return; + } if (state) { fbcon_suspended(info); info->state = FBINFO_STATE_SUSPENDED; -- 2.20.1