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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 AD53BC43141 for ; Fri, 22 Nov 2019 06:14:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7659E20708 for ; Fri, 22 Nov 2019 06:14:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574403258; bh=KUH5PvAtEDM8Bcex0Fg/46Vum8Vpxq1Gj4WDcrOMttw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=edhmhRuQmgi7Kx2+fTqoqdzdIxRGNVrNPiGtU+B/NFAW1KT0jILFLyfr/cIQDbtnO F5riUi+seHcEgFDQ0+xmd+TcG1+sOwZeHrd6EUUrBfxnhuVzSPyrIS5wOBTbOSq6lG 3flqit8/SNq1kUMRwGteJav6t2Xs/uTOuQ4Oo0bI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729703AbfKVGOR (ORCPT ); Fri, 22 Nov 2019 01:14:17 -0500 Received: from mail.kernel.org ([198.145.29.99]:51416 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729552AbfKVGN4 (ORCPT ); Fri, 22 Nov 2019 01:13:56 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1B7EC20718; Fri, 22 Nov 2019 06:13:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574403235; bh=KUH5PvAtEDM8Bcex0Fg/46Vum8Vpxq1Gj4WDcrOMttw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RRRKfaKhz2EUn4Mnri7LG2mme6WwWixZX4Zo/9p0S0X5H+x9vNQXmVgUEYxjxLWvC oiPDEWpvtwVThRc/9nLwJ84fTOEh7mxSSd8nDbM2iuqluH/ee6aviwSbwtmtwg4lM3 rR2A0ycU+xIXm9eSd8LTfgVq6V2rLIk6zTRqIM5s= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kangjie Lu , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com Subject: [PATCH AUTOSEL 4.4 48/68] net: stmicro: fix a missing check of clk_prepare Date: Fri, 22 Nov 2019 01:12:41 -0500 Message-Id: <20191122061301.4947-47-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191122061301.4947-1-sashal@kernel.org> References: <20191122061301.4947-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore 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 adff46375a322..6e56c4e5ecec5 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