Received: by 2002:a05:6358:45e:b0:b5:b6eb:e1f9 with SMTP id 30csp116753rwe; Fri, 26 Aug 2022 01:38:58 -0700 (PDT) X-Google-Smtp-Source: AA6agR6oFwM01RP0mPa0aEyX4pSPZ4xmsRhrPAmIrAjib07+hOIhnnNMpvEh6icJHKlAr2lEz8Ag X-Received: by 2002:a63:85c2:0:b0:42b:497d:e06a with SMTP id u185-20020a6385c2000000b0042b497de06amr2462280pgd.479.1661503138246; Fri, 26 Aug 2022 01:38:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1661503138; cv=none; d=google.com; s=arc-20160816; b=0/UIZT1RpruzkWyNIk6+Zx6ZmtMAGBgVNl1OlBmluyRxEW5JEoNjCuUszNdqlg8TFD y2J8B9eWVFouYQHh6y5eHOrt9JRazlHShgyAiWrK1lzJ7xrsxW3ycbd038f8y8+xOV9+ Cuoqcl79PFn7ZChUPmVgr9aJhXhdjtAFf35Wz5K9qPcgqH9FMWSaG3plYemqrdgqnfzk gfaHAu9RvCnZWrX2o/pgRKvDngPPvdly57cR8pJ0T1Pw5R4NYmFSs5yHas3nVb/1WlyR dCmPu8YN2+l6NxHtjdoify/zgekQ60pd/0i20Cwv3YDReyUnm/jDFABOQ23JQQfFLW9e AekQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:subject:message-id:date:from:in-reply-to :references:mime-version:dkim-signature; bh=ZqQXUKYAXaNDETmnzeEy5G83vWE0Lw9aO8Wft3lc78A=; b=0Bs2mH1CK8ZZ31SmffRbEOUZEDNCyb1a7kJF3q/plUsOqvMkfLOT9TKByGj6qpThi6 xU0yEHK9qO0TKrgnHYNmALG0NyuVfqMfA+h0CKKOX4MUhwSkUjRtFQYD/qdWqM6NqYKZ 3wgaPLoX74CltXPAEUfv1Xj7XkhUW2cRceBXksUedZ9hcZBxsCbqGP+UonzOQweOUhTL FNJJNjc5wvfyy/OLvHReucAMhSvAKScmByoezWcLC0U2n9s12tSOKMtTlPy3pEScZh9y t+S+CR544f9kzE4/GurVA5f6LZGCuIN5eJ5ueyK+a0PuVdWJ2dmMG2BP2p3WX77JkEEI /qCQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=lHm01CIa; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id 143-20020a621695000000b0052e03a6013fsi956824pfw.126.2022.08.26.01.38.45; Fri, 26 Aug 2022 01:38:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=lHm01CIa; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343627AbiHZI3c (ORCPT + 99 others); Fri, 26 Aug 2022 04:29:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343621AbiHZI31 (ORCPT ); Fri, 26 Aug 2022 04:29:27 -0400 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D559ED4F6B; Fri, 26 Aug 2022 01:29:23 -0700 (PDT) Received: by mail-pl1-x62e.google.com with SMTP id c2so1013869plo.3; Fri, 26 Aug 2022 01:29:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc; bh=ZqQXUKYAXaNDETmnzeEy5G83vWE0Lw9aO8Wft3lc78A=; b=lHm01CIa8Ixwmw1uJbquAM1f1zYuep3xl5yOXbVV8/h1mKz1UvIt20rKsBMiX05kez jWWGO/PVdQHowBnz/kXPpWzEDX41esricYJZ9gYPVItMvjHRyO+X7UFKRnAnc/8kNU5c O0sotFfxGvl7R6IVAHMY3+PuKbpe+arBx34jFUo+Q7LQH+LZ+5fsJUX21od4/hB62J2E imDG60OHOvchC27FNt4EXDUbXrOQdXe9kuie+wz/VjSOX6E//av7SHIP4rmUa8UIn+u6 IrZNMxQTckyN3oq41/WK9Z8kL2P3EtPWdm54BrIPEocfesPlK/zTzVWVgWstNsndW8DT ++gQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc; bh=ZqQXUKYAXaNDETmnzeEy5G83vWE0Lw9aO8Wft3lc78A=; b=sE7Dm/nbNEKpVvXj0VW123iIHQ7T8FT/5U80WzLwUfy/46cwU26j1LaIDUe5k2ryMf EeoXYGEMaehgO/MohLCOGIBdnLWQkXNPi2bFDcOQ6MajESCNxNdOjx3oEaEHM841MJCE oxfcTIHryT+RpQQ9cbUXJHeSeE9bVM04+fuUruWyIowRsYxJ2G6rHhMwYxu0X3s5cgbR VZ5BG7dAvV1tK200dLIZuQKX9iGhrpUb5nU3zz79VTJ9N9rkfHxrP/rV8ydWjuyWn6Io C69aK0xszJsr+DFP93ukr7pCH4Ks5UOBqPTTALkWaS1BREC7TeOCWv+TShc7Vi0oFGVr jT0Q== X-Gm-Message-State: ACgBeo2e5LbLo+bsLMuzmD3r8pyY7qGv5Ul5IwBfeDY6GjMdT6Mc8OdG TRQPEKD82fvRrEVqGd1gTbqgPNNIsclu25ma8E0= X-Received: by 2002:a17:902:e5cc:b0:16f:1e31:da6c with SMTP id u12-20020a170902e5cc00b0016f1e31da6cmr2745061plf.66.1661502563310; Fri, 26 Aug 2022 01:29:23 -0700 (PDT) MIME-Version: 1.0 References: <20220823055739.1451419-1-floridsleeves@gmail.com> In-Reply-To: From: Li Zhong Date: Fri, 26 Aug 2022 01:29:12 -0700 Message-ID: Subject: Re: [PATCH v1] drivers/tty/serial: check the return value of uart_port_check() To: Greg KH Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, jirislaby@kernel.org Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 22, 2022 at 11:22 PM Greg KH wrote: > > On Mon, Aug 22, 2022 at 10:57:39PM -0700, lily wrote: > > uart_port_check() can return NULL pointer. Check its return value > > before dereference it. > > Also, how did you find this issue? > > > > > Signed-off-by: Li Zhong > > Also, your From: name does not match this one, so I can't take the patch > even if it is ok :( > > Please do initial kernel work in drivers/staging/ to get issues like > this fixed up before moving to other portions of the kernel so that > basic email problems do not bother other subsystem maintainers. > Thanks for the suggestions! I'll correct the From: in my v2 patch. > thanks, > > greg k-h > >