From patchwork Wed Jan 23 06:19:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yongjun X-Patchwork-Id: 10776539 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DA919139A for ; Wed, 23 Jan 2019 06:13:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BE00D2995C for ; Wed, 23 Jan 2019 06:13:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B06E429C95; Wed, 23 Jan 2019 06:13:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6632E2995C for ; Wed, 23 Jan 2019 06:13:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=xt49h2PMnSuFpVkWVgVHeP5JJaiYJetmQ+xtU++gpOI=; b=jN2AhLTBfvNpWb DXhxgI45ZEwUDuEzt/pOZUnDObpq2pf8dHYxlce0DgFvPUf1PkaJbyoMMI7vFTtrwVsOl7UHZBudS kxlDsmeRS+sRc/bRhIwJ9p5JK7l0JNCa4vrSHFXFN2mjDR2NH/B2TjN54X5Vd6DeLPztBBt6I2baw d7+bRwaHy+72OmmCtGFVPUtTF6RCNESbY+/XBe5Zsa/X6gF0mvkDcQcWf2akB0QleNRmk7M/syV6e LjRJ4d5Evs6K2BOPkCgELqjGfTxzw9cj/FW+YLgyWlUDBuIQBuldrEAAR1pmNRulJmoRMUFNEd0tB lXG5nctSprwufma3u3ew==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gmBnO-0004Y4-RE; Wed, 23 Jan 2019 06:13:54 +0000 Received: from szxga06-in.huawei.com ([45.249.212.32] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gmBnL-0004WH-JA for linux-arm-kernel@lists.infradead.org; Wed, 23 Jan 2019 06:13:53 +0000 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 1B838A00282F421030C5; Wed, 23 Jan 2019 14:13:44 +0800 (CST) Received: from localhost.localdomain.localdomain (10.175.113.25) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.408.0; Wed, 23 Jan 2019 14:13:34 +0800 From: Wei Yongjun To: Vinod Koul , Niklas Cassel , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , Maxime Coquelin Subject: [PATCH net-next] net: stmmac: Fix return value check in qcom_ethqos_probe() Date: Wed, 23 Jan 2019 06:19:18 +0000 Message-ID: <1548224358-83281-1-git-send-email-weiyongjun1@huawei.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Originating-IP: [10.175.113.25] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190122_221351_797517_73BE41B2 X-CRM114-Status: GOOD ( 10.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, kernel-janitors@vger.kernel.org, Wei Yongjun , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP In case of error, the function devm_clk_get() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: a7c30e62d4b8 ("net: stmmac: Add driver for Qualcomm ethqos") Signed-off-by: Wei Yongjun Acked-by: Vinod Koul Acked-by: Niklas Cassel --- drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index 30724bd..7ec8954 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -473,8 +473,8 @@ static int qcom_ethqos_probe(struct platform_device *pdev) ethqos->por = of_device_get_match_data(&pdev->dev); ethqos->rgmii_clk = devm_clk_get(&pdev->dev, "rgmii"); - if (!ethqos->rgmii_clk) { - ret = -ENOMEM; + if (IS_ERR(ethqos->rgmii_clk)) { + ret = PTR_ERR(ethqos->rgmii_clk); goto err_mem; }