linux-kernel - [PATCH 5.10 079/146] phy: phy-mtk-tphy: Fix some resource leaks in mtk_phy

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Date:   Mon, 21 Jun 2021 18:15:09 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Vinod Koul <vkoul@...nel.org>, Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 079/146] phy: phy-mtk-tphy: Fix some resource leaks in mtk_phy_init()

From: Tiezhu Yang <yangtiezhu@...ngson.cn>

[ Upstream commit aaac9a1bd370338ce372669eb9a6059d16b929aa ]

Use clk_disable_unprepare() in the error path of mtk_phy_init() to fix
some resource leaks.

Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
Reviewed-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
Link: https://lore.kernel.org/r/1621420659-15858-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Vinod Koul <vkoul@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/phy/mediatek/phy-mtk-tphy.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/mediatek/phy-mtk-tphy.c b/drivers/phy/mediatek/phy-mtk-tphy.c
index cdbcc49f7115..731c483a04de 100644
--- a/drivers/phy/mediatek/phy-mtk-tphy.c
+++ b/drivers/phy/mediatek/phy-mtk-tphy.c
@@ -949,6 +949,8 @@ static int mtk_phy_init(struct phy *phy)
 		break;
 	default:
 		dev_err(tphy->dev, "incompatible PHY type\n");
+		clk_disable_unprepare(instance->ref_clk);
+		clk_disable_unprepare(instance->da_ref_clk);
 		return -EINVAL;
 	}
 
-- 
2.30.2