linux-kernel - [PATCH net] net: bcmgenet: fix error returns in bcmgenet

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Message-ID: <1595229523-9725-1-git-send-email-zhangchangzhong@huawei.com>
Date:   Mon, 20 Jul 2020 15:18:43 +0800
From:   Zhang Changzhong <zhangchangzhong@...wei.com>
To:     <opendmb@...il.com>, <f.fainelli@...il.com>, <davem@...emloft.net>,
        <kuba@...nel.org>
CC:     <bcm-kernel-feedback-list@...adcom.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH net] net: bcmgenet: fix error returns in bcmgenet_probe()

The driver forgets to call clk_disable_unprepare() in error path after
a success calling for clk_prepare_enable().

Fix to goto err_clk_disable if clk_prepare_enable() is successful.

Fixes: 99d55638d4b0 ("net: bcmgenet: enable NETIF_F_HIGHDMA flag")
Signed-off-by: Zhang Changzhong <zhangchangzhong@...wei.com>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 368e05b..903811e 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3988,7 +3988,7 @@ static int bcmgenet_probe(struct platform_device *pdev)
 	if (err)
 		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (err)
-		goto err;
+		goto err_clk_disable;
 
 	/* Mii wait queue */
 	init_waitqueue_head(&priv->wq);
-- 
1.8.3.1