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[2620:137:e000::1:20]) by mx.google.com with ESMTP id lo22-20020a170906fa1600b0098cee0f8cfesi1297444ejb.969.2023.07.18.07.49.06; Tue, 18 Jul 2023 07:49:30 -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=@intel.com header.s=Intel header.b=WLAmWKSK; 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=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233272AbjGROTW (ORCPT + 99 others); Tue, 18 Jul 2023 10:19:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231360AbjGROTV (ORCPT ); Tue, 18 Jul 2023 10:19:21 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC8BDE4C; Tue, 18 Jul 2023 07:19:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1689689961; x=1721225961; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=EoZ4wzTcvybBt6VwW/afQjL0Q4yJDPrwIabLfIL4h8A=; b=WLAmWKSK7qBc8goSpmnuBMeIKxH1Isxxfcx5Yrm5C/uYKG0Y591RNgN4 21e3x3NiDna29q3iTfbSrld87b2N896C1LyoiQ2N/tpt3atQLiQNKIZll yjV7lTtOBIpqfA4KBZWI+/Octa6jgVe5g+Vw6NksKDa58dZMLe1X9hcSb zorS00m5bUQO8JyF4SS93FZ1wbHBHmNCSH9JY8es+Qc/5MjM7sOhmgu45 MJ5cK0ebpb+LefVoDNGkCR2HFREr82L2J53jiE5fKA/J9fQQ1dGsAJT4e mL3RqwG2H7U/nAM0VKz6ouxXSCx2W0CLhaHt9YCowj/fbSVCzHy0ZGaab A==; X-IronPort-AV: E=McAfee;i="6600,9927,10775"; a="429978777" X-IronPort-AV: E=Sophos;i="6.01,214,1684825200"; d="scan'208";a="429978777" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jul 2023 07:19:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10775"; a="1054301231" X-IronPort-AV: E=Sophos;i="6.01,214,1684825200"; d="scan'208";a="1054301231" Received: from smile.fi.intel.com ([10.237.72.54]) by fmsmga005.fm.intel.com with ESMTP; 18 Jul 2023 07:19:18 -0700 Received: from andy by smile.fi.intel.com with local (Exim 4.96) (envelope-from ) id 1qLlXo-00Gohu-1K; Tue, 18 Jul 2023 17:19:16 +0300 Date: Tue, 18 Jul 2023 17:19:16 +0300 From: Andy Shevchenko To: Harshit Mogalapalli Cc: Tomi Valkeinen , Mauro Carvalho Chehab , Sakari Ailus , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, dan.carpenter@linaro.org, kernel-janitors@vger.kernel.org, error27@gmail.com Subject: Re: [PATCH v2 next] media: i2c: fix error handling in ub960_rxport_add_serializer() Message-ID: References: <20230718140659.4009167-1-harshit.m.mogalapalli@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230718140659.4009167-1-harshit.m.mogalapalli@oracle.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED 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 Tue, Jul 18, 2023 at 07:06:58AM -0700, Harshit Mogalapalli wrote: > Smatch warns: > drivers/media/i2c/ds90ub960.c:1671 ub960_rxport_add_serializer(): > err: 'rxport->ser.client' dereferencing possible ERR_PTR() > > i2c_new_client_device() returns error pointers on failure and in > dev_dbg statement we are dereferencing error pointer which is a bug. > > Fix this by using IS_ERR() which checks for error pointers. Reviewed-by: Andy Shevchenko -- With Best Regards, Andy Shevchenko