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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 3B73AC432C3 for ; Fri, 22 Nov 2019 11:05:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 14F68207FC for ; Fri, 22 Nov 2019 11:05:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574420741; bh=ynIhFj/qx4jDaE1Oo3VHwQCKtQ8asuUgAcjpPSkosCY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ldIBzSHCcs/qc8jNuuh80rwH8rGO37kwRCXrSHZlR0tNeSGUf4Kd5gPgb2pRHdYv5 uk9oOFf+Gq79KAZla1zWyiWBtRonUUtgxE66etTJ0EeI4SoRIZr74KMYP0d3v2JzGE EAI32T79yBx+4Lwd/xH1sRYTXljoBmwIhxliBk5g= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731038AbfKVLFj (ORCPT ); Fri, 22 Nov 2019 06:05:39 -0500 Received: from mail.kernel.org ([198.145.29.99]:33258 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728326AbfKVLFj (ORCPT ); Fri, 22 Nov 2019 06:05:39 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 09D312075E; Fri, 22 Nov 2019 11:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574420738; bh=ynIhFj/qx4jDaE1Oo3VHwQCKtQ8asuUgAcjpPSkosCY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QDPGXjZ7hzIoVCgrqZA8HPzfCpiN2vWxbdk3jUfVxc7VzlEeWsNrNwxWTydD1qrWs qunva8rLZHuxSAYtG8CvM+Y95BdyNN0Telu7E20dvz8TgxbYsgcSyI3NVmcaRt7jsM WPPt/eCN4DpGmo6D8N1bdKV5Jypf0ND1oZuRoUD4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, zhong jiang , Andrew Donnellan , Frederic Barrat , Sasha Levin Subject: [PATCH 4.19 207/220] misc: cxl: Fix possible null pointer dereference Date: Fri, 22 Nov 2019 11:29:32 +0100 Message-Id: <20191122100928.666665210@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100912.732983531@linuxfoundation.org> References: <20191122100912.732983531@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: zhong jiang [ Upstream commit 3dac3583bf1a61db6aaf31dfd752c677a4400afd ] It is not safe to dereference an object before a null test. It is not needed and just remove them. Ftrace can be used instead. Signed-off-by: zhong jiang Acked-by: Andrew Donnellan Acked-by: Frederic Barrat Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/misc/cxl/guest.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c index b83a373e3a8dd..08f4a512afad2 100644 --- a/drivers/misc/cxl/guest.c +++ b/drivers/misc/cxl/guest.c @@ -1020,8 +1020,6 @@ int cxl_guest_init_afu(struct cxl *adapter, int slice, struct device_node *afu_n void cxl_guest_remove_afu(struct cxl_afu *afu) { - pr_devel("in %s - AFU(%d)\n", __func__, afu->slice); - if (!afu) return; -- 2.20.1