Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp1726286pxb; Thu, 4 Feb 2021 23:00:49 -0800 (PST) X-Google-Smtp-Source: ABdhPJwi1SplC9wTNrLBJHuGIu0HABOoPRQy2BbDvI3dUc90QfwjWqI/3IkEb3s/TR7/itNCziS9 X-Received: by 2002:a17:907:11c7:: with SMTP id va7mr2705977ejb.351.1612508449242; Thu, 04 Feb 2021 23:00:49 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1612508449; cv=none; d=google.com; s=arc-20160816; b=sJ5vxH01QCP5Mz/Pxfgqb/5SR5f9Lzs5qW2dLbrr3Py0+xR7zL/xRykX74To43+5IP cRY/LWbudP3wLfIiWNN+by/jCl0/Bj3J9VkXzIHSEQqthUUitTlLw7UwLi3gbjtSovbd j3dMcCIJSS1nb4wduifL0AzquDi2+QaUvO8g+cjjGuYMSpP0fjKHWPdvdCo0k4AMQsxX 4QHTSD9N7E7IFtyP7W853XkKxXu4mmLRIG3nZUOPphC2i8dDTFe3HPcpaCr0oFMo0vn7 F14CbWX+bkaqKguFteUmJ5WK55rKI+KTtc6Y3U1rti5ByVIj6aKujC1DnyFRQinNQ1OD L+JQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=85yHOO8y9lXxp7Jwqs1S6X0AuPTrTB064Zn+V1JjZ2c=; b=n8Io4xYEOzA8HVv31/fl7uUfL2gJLhNcZIrQL1UZbjpavX0xWwMElonMvpnUOT5rK5 p6VUYCxJOd1pt5cTrMdRnGbMko55i9DTAkVc1gDdOt7r7RmrNgn+GtSSax/94Ty2yVXa p7z5klXE45VnAyuFzQaDrGcIiczWRi6sbzNUA9p6w8dDEnI0HmFkzC8DyPxMCrNATRuE BrHvpMiw2NiL2BMHSR9pgtm1cJ/RKakvSb+z+HlCD3v1Thr3r0rEWevyQoLbg52XcFvX 2RnS9n7u39COBJ6rGpw/LrUCBHOe0lLKcvaocaiYjB/q2l6wAxFPCiGeYorF6mRrP8D+ nhmw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p12si3813573ejb.496.2021.02.04.23.00.23; Thu, 04 Feb 2021 23:00:49 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231220AbhBEG4e (ORCPT + 99 others); Fri, 5 Feb 2021 01:56:34 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:11681 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230415AbhBEG4d (ORCPT ); Fri, 5 Feb 2021 01:56:33 -0500 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4DX5k92kpVzlGnx; Fri, 5 Feb 2021 14:54:09 +0800 (CST) Received: from huawei.com (10.175.101.6) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.498.0; Fri, 5 Feb 2021 14:55:40 +0800 From: Sun Ke To: , , CC: , , , Subject: [PATCH v5 0/2] fix a NULL pointer bug and simplify the code Date: Fri, 5 Feb 2021 01:56:48 -0500 Message-ID: <20210205065650.2357457-1-sunke32@huawei.com> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.175.101.6] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org v5: Adjust the title and add “Suggested-by”. v4: Share exception handling code for if branches and move put_nbd adjustment to a separate patch. v3: Do not use unlock and add put_nbd. v2: Use jump target unlock. Sun Ke (2): nbd: Fix NULL pointer in flush_workqueue nbd: share nbd_put and return by goto put_nbd drivers/block/nbd.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) -- 2.25.4