From patchwork Sat Sep 7 03:19:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Li Zetao X-Patchwork-Id: 13795010 Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9FEE81442F2; Sat, 7 Sep 2024 03:10:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.35 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725678648; cv=none; b=OXYCQrRsBMU5/wdO+c5N12IIJyS/Y2DCxf/qslVLjpRcxy8Ova+8Gechu//ZPqkBAV380noZ4+JcBW/zRsTY33Xd3g8qlJ5aDBr2kGAf0WN9BAfWTmsN6pg+UIYXMo0mhtuI80biHvVd3nja/jIjLutXCxvmqzOrcnOhtcxl55g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725678648; c=relaxed/simple; bh=pgpSkhBHQe3kO4JzSy7/u8s/uy8jdKneq2h1Ysxr53I=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=uLg4ir2VvJEqSHVaOJtQNOSU984zB8ecRMDd8s7rRsJWTnYUwhDKdLOZU08n4QeWR0vLHzpXlpWC2zwZJPqqKoAymTDs6Jn6/hwb8tSwh7aXY8RttfA3cVVkbh9Ro888lZV4XdpGOisS10Qse+yYns7URMTlSrpxJ8ZDmbmA2fU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.35 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.44]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4X0ylH1Ly1z1S9jX; Sat, 7 Sep 2024 11:10:19 +0800 (CST) Received: from kwepemd500012.china.huawei.com (unknown [7.221.188.25]) by mail.maildlp.com (Postfix) with ESMTPS id 896C414011F; Sat, 7 Sep 2024 11:10:43 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemd500012.china.huawei.com (7.221.188.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1258.34; Sat, 7 Sep 2024 11:10:42 +0800 From: Li Zetao To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , Subject: [PATCH net-next v2 06/10] net: ethernet: hisilicon: Convert using devm_clk_get_enabled() in hisi_femac_drv_probe() Date: Sat, 7 Sep 2024 11:19:22 +0800 Message-ID: <20240907031926.3591353-7-lizetao1@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240907031926.3591353-1-lizetao1@huawei.com> References: <20240907031926.3591353-1-lizetao1@huawei.com> Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To kwepemd500012.china.huawei.com (7.221.188.25) Use devm_clk_get_enabled() instead of devm_clk_get() + clk_prepare_enable(), which can make the clk consistent with the device life cycle and reduce the risk of unreleased clk resources. Since the device framework has automatically released the clk resource, there is no need to execute clk_disable_unprepare(clk) on the error path, drop the out_disable_clk label, and the original error process can change to the out_free_netdev error path. Signed-off-by: Li Zetao --- drivers/net/ethernet/hisilicon/hisi_femac.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hisi_femac.c b/drivers/net/ethernet/hisilicon/hisi_femac.c index 2406263c9dd3..ffb6f4751d8b 100644 --- a/drivers/net/ethernet/hisilicon/hisi_femac.c +++ b/drivers/net/ethernet/hisilicon/hisi_femac.c @@ -797,23 +797,17 @@ static int hisi_femac_drv_probe(struct platform_device *pdev) goto out_free_netdev; } - priv->clk = devm_clk_get(&pdev->dev, NULL); + priv->clk = devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(priv->clk)) { dev_err(dev, "failed to get clk\n"); ret = -ENODEV; goto out_free_netdev; } - ret = clk_prepare_enable(priv->clk); - if (ret) { - dev_err(dev, "failed to enable clk %d\n", ret); - goto out_free_netdev; - } - priv->mac_rst = devm_reset_control_get(dev, "mac"); if (IS_ERR(priv->mac_rst)) { ret = PTR_ERR(priv->mac_rst); - goto out_disable_clk; + goto out_free_netdev; } hisi_femac_core_reset(priv); @@ -826,7 +820,7 @@ static int hisi_femac_drv_probe(struct platform_device *pdev) priv->phy_reset_delays, DELAYS_NUM); if (ret) - goto out_disable_clk; + goto out_free_netdev; hisi_femac_phy_reset(priv); } @@ -834,7 +828,7 @@ static int hisi_femac_drv_probe(struct platform_device *pdev) if (!phy) { dev_err(dev, "connect to PHY failed!\n"); ret = -ENODEV; - goto out_disable_clk; + goto out_free_netdev; } phy_attached_print(phy, "phy_id=0x%.8lx, phy_mode=%s\n", @@ -885,8 +879,6 @@ static int hisi_femac_drv_probe(struct platform_device *pdev) out_disconnect_phy: netif_napi_del(&priv->napi); phy_disconnect(phy); -out_disable_clk: - clk_disable_unprepare(priv->clk); out_free_netdev: free_netdev(ndev); @@ -902,7 +894,6 @@ static void hisi_femac_drv_remove(struct platform_device *pdev) unregister_netdev(ndev); phy_disconnect(ndev->phydev); - clk_disable_unprepare(priv->clk); free_netdev(ndev); }