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Date:   Mon, 20 Jul 2020 09:04:15 -0700
From:   Doug Berger <opendmb@...il.com>
To:     Zhang Changzhong <zhangchangzhong@...wei.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: Re: [PATCH net] net: bcmgenet: fix error returns in bcmgenet_probe()

On 7/20/2020 12:18 AM, Zhang Changzhong wrote:
> 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);
> 
Acked-by: Doug Berger <opendmb@...il.com>

Thanks!

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