From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 CF479C43603 for ; Wed, 4 Dec 2019 18:12:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 96758206DF for ; Wed, 4 Dec 2019 18:12:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575483169; bh=zCX38j0ApMKwif385tSeV5oiDGYMeI09N9Vdg67Tctw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hgSg9GjQp4rcKiZz6w0iZmDOJ/89iv+RTmyN13zRgSVVNRV4fzbCqrOPZ4pw6pT1c uLY+F9RK6msQ78a1JVy4wmGoKkJWXfFjmVbhkysuhN8OEf/of8YomBfd0aZSXDL2CS ifIQeMLTsHm98ZVSV2vkyzLi9qdufg4FEpvhtBBs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731661AbfLDSMs (ORCPT ); Wed, 4 Dec 2019 13:12:48 -0500 Received: from mail.kernel.org ([198.145.29.99]:41538 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731654AbfLDSMp (ORCPT ); Wed, 4 Dec 2019 13:12:45 -0500 Received: from localhost (unknown [217.68.49.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E683120675; Wed, 4 Dec 2019 18:12:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575483164; bh=zCX38j0ApMKwif385tSeV5oiDGYMeI09N9Vdg67Tctw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gQv3w7zcYP7uMSc1Aq8zeNAzCySTJACRa3dbG9aK/+yZtarZApVR8/tWsp68H5qNi 3ruJErmmEU5rEBohvpNhVqJFv3fRasbF33mt4GpCJXym1X3IsDmep6GJz/fI49Tui3 JOgFJMiqs4JacHmSieScurppfxba///KyNihH4GU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kangjie Lu , "David S. Miller" , Sasha Levin Subject: [PATCH 4.9 076/125] net: stmicro: fix a missing check of clk_prepare Date: Wed, 4 Dec 2019 18:56:21 +0100 Message-Id: <20191204175323.667263270@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191204175308.377746305@linuxfoundation.org> References: <20191204175308.377746305@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kangjie Lu [ Upstream commit f86a3b83833e7cfe558ca4d70b64ebc48903efec ] clk_prepare() could fail, so let's check its status, and if it fails, return its error code upstream. Signed-off-by: Kangjie Lu Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c index d07520fb969e6..62ccbd47c1db2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c @@ -59,7 +59,9 @@ static int sun7i_gmac_init(struct platform_device *pdev, void *priv) gmac->clk_enabled = 1; } else { clk_set_rate(gmac->tx_clk, SUN7I_GMAC_MII_RATE); - clk_prepare(gmac->tx_clk); + ret = clk_prepare(gmac->tx_clk); + if (ret) + return ret; } return 0; -- 2.20.1