From patchwork Wed May 12 14:46:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 438549 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 98F8EC43617 for ; Wed, 12 May 2021 15:32:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 790B561CD7 for ; Wed, 12 May 2021 15:32:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234620AbhELPd1 (ORCPT ); Wed, 12 May 2021 11:33:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:40914 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235682AbhELP2q (ORCPT ); Wed, 12 May 2021 11:28:46 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1683C61C31; Wed, 12 May 2021 15:14:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620832488; bh=Yuzkcg7FSzfKl8w00MFhYFKtW9QDj/lHSoQ7K/RzPgs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kI1kXa/hFYvf+E1cvkNy7iO7MlREKPfPvtybunL3kDOdqAjDQE/vdMtNjaUcTX/cZ w5jttrWBn9v3yl8uu2q6fdpT1Ug6LoY0Y+iDxilaegf8UTuel1obUqOAqSliivPrRa Xg633A1TQtNmMxHZEJZdgbMqnFt4NqAvP7NTenL8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Wei Yongjun , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.10 293/530] media: m88ds3103: fix return value check in m88ds3103_probe() Date: Wed, 12 May 2021 16:46:43 +0200 Message-Id: <20210512144829.437861477@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144819.664462530@linuxfoundation.org> References: <20210512144819.664462530@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Wei Yongjun [ Upstream commit e61f9ea271933d987ab895c689fa37744f6fc27f ] In case of error, the function i2c_new_dummy_device() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: e6089feca460 ("media: m88ds3103: Add support for ds3103b demod") Reported-by: Hulk Robot Signed-off-by: Wei Yongjun Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/dvb-frontends/m88ds3103.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/dvb-frontends/m88ds3103.c b/drivers/media/dvb-frontends/m88ds3103.c index ad6d9d564a87..c120cffb52ad 100644 --- a/drivers/media/dvb-frontends/m88ds3103.c +++ b/drivers/media/dvb-frontends/m88ds3103.c @@ -1904,8 +1904,8 @@ static int m88ds3103_probe(struct i2c_client *client, dev->dt_client = i2c_new_dummy_device(client->adapter, dev->dt_addr); - if (!dev->dt_client) { - ret = -ENODEV; + if (IS_ERR(dev->dt_client)) { + ret = PTR_ERR(dev->dt_client); goto err_kfree; } }