From patchwork Mon Mar 1 16:12:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 389848 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=-18.8 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 55684C433E9 for ; Mon, 1 Mar 2021 17:52:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 30A5B6513D for ; Mon, 1 Mar 2021 17:52:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234759AbhCARwB (ORCPT ); Mon, 1 Mar 2021 12:52:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:37566 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238543AbhCARpo (ORCPT ); Mon, 1 Mar 2021 12:45:44 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1C51664FE7; Mon, 1 Mar 2021 16:58:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614617887; bh=QsTUp8bQsQpd8ulOBfV2MbPHQmo7AQ+qGIkRfCUfRSk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ddzsywtyvLKzSV47oDZoh/rues7NnzQe/FJ+0CgboS1IvbyQcSJlJAO8u5tDqwR7w dNk3YZIKaW6oRvogQVq8i9FeaDeaLE036pNuWNsA/STqLlXaiofCMJHNKVurRRLgXk MyzGhdFeLQnhPZhVnNRhDdzQ0L2fVCuzhFE53Z5U= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chris Ruehl , Douglas Anderson , Vinod Koul , Sasha Levin Subject: [PATCH 5.4 202/340] phy: rockchip-emmc: emmc_phy_init() always return 0 Date: Mon, 1 Mar 2021 17:12:26 +0100 Message-Id: <20210301161058.248227924@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161048.294656001@linuxfoundation.org> References: <20210301161048.294656001@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Chris Ruehl [ Upstream commit 39961bd6b70e5a5d7c4b5483ad8e1db6b5765c60 ] rockchip_emmc_phy_init() return variable is not set with the error value if clk_get() failed. 'emmcclk' is optional, thus use clk_get_optional() and if the return value != NULL make error processing and set the return code accordingly. Fixes: 52c0624a10cce phy: rockchip-emmc: Set phyctrl_frqsel based on card clock Signed-off-by: Chris Ruehl Reviewed-by: Douglas Anderson Link: https://lore.kernel.org/r/20201210080454.17379-1-chris.ruehl@gtsys.com.hk Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/phy/rockchip/phy-rockchip-emmc.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/phy/rockchip/phy-rockchip-emmc.c b/drivers/phy/rockchip/phy-rockchip-emmc.c index 2dc19ddd120f5..a005fc58bbf02 100644 --- a/drivers/phy/rockchip/phy-rockchip-emmc.c +++ b/drivers/phy/rockchip/phy-rockchip-emmc.c @@ -240,15 +240,17 @@ static int rockchip_emmc_phy_init(struct phy *phy) * - SDHCI driver to get the PHY * - SDHCI driver to init the PHY * - * The clock is optional, so upon any error we just set to NULL. + * The clock is optional, using clk_get_optional() to get the clock + * and do error processing if the return value != NULL * * NOTE: we don't do anything special for EPROBE_DEFER here. Given the * above expected use case, EPROBE_DEFER isn't sensible to expect, so * it's just like any other error. */ - rk_phy->emmcclk = clk_get(&phy->dev, "emmcclk"); + rk_phy->emmcclk = clk_get_optional(&phy->dev, "emmcclk"); if (IS_ERR(rk_phy->emmcclk)) { - dev_dbg(&phy->dev, "Error getting emmcclk: %d\n", ret); + ret = PTR_ERR(rk_phy->emmcclk); + dev_err(&phy->dev, "Error getting emmcclk: %d\n", ret); rk_phy->emmcclk = NULL; }