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* [PATCH net] net: bcmgenet: add missed clk_disable_unprepare in bcmgenet_probe
@ 2020-07-20  9:36 Zhang Changzhong
  2020-07-20 16:02 ` Doug Berger
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Zhang Changzhong @ 2020-07-20  9:36 UTC (permalink / raw)
  To: opendmb, f.fainelli, davem, kuba
  Cc: bcm-kernel-feedback-list, netdev, linux-kernel

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: c80d36ff63a5 ("net: bcmgenet: Use devm_clk_get_optional() to get the clocks")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 368e05b..79d27be 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -4000,14 +4000,14 @@ static int bcmgenet_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->clk_wol)) {
 		dev_dbg(&priv->pdev->dev, "failed to get enet-wol clock\n");
 		err = PTR_ERR(priv->clk_wol);
-		goto err;
+		goto err_clk_disable;
 	}
 
 	priv->clk_eee = devm_clk_get_optional(&priv->pdev->dev, "enet-eee");
 	if (IS_ERR(priv->clk_eee)) {
 		dev_dbg(&priv->pdev->dev, "failed to get enet-eee clock\n");
 		err = PTR_ERR(priv->clk_eee);
-		goto err;
+		goto err_clk_disable;
 	}
 
 	/* If this is an internal GPHY, power it on now, before UniMAC is
-- 
1.8.3.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH net] net: bcmgenet: add missed clk_disable_unprepare in bcmgenet_probe
  2020-07-20  9:36 [PATCH net] net: bcmgenet: add missed clk_disable_unprepare in bcmgenet_probe Zhang Changzhong
@ 2020-07-20 16:02 ` Doug Berger
  2020-07-20 17:01 ` Florian Fainelli
  2020-07-21  0:04 ` David Miller
  2 siblings, 0 replies; 4+ messages in thread
From: Doug Berger @ 2020-07-20 16:02 UTC (permalink / raw)
  To: Zhang Changzhong, f.fainelli, davem, kuba
  Cc: bcm-kernel-feedback-list, netdev, linux-kernel

On 7/20/2020 2:36 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: c80d36ff63a5 ("net: bcmgenet: Use devm_clk_get_optional() to get the clocks")
> Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
> ---
>  drivers/net/ethernet/broadcom/genet/bcmgenet.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
> index 368e05b..79d27be 100644
> --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
> +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
> @@ -4000,14 +4000,14 @@ static int bcmgenet_probe(struct platform_device *pdev)
>  	if (IS_ERR(priv->clk_wol)) {
>  		dev_dbg(&priv->pdev->dev, "failed to get enet-wol clock\n");
>  		err = PTR_ERR(priv->clk_wol);
> -		goto err;
> +		goto err_clk_disable;
>  	}
>  
>  	priv->clk_eee = devm_clk_get_optional(&priv->pdev->dev, "enet-eee");
>  	if (IS_ERR(priv->clk_eee)) {
>  		dev_dbg(&priv->pdev->dev, "failed to get enet-eee clock\n");
>  		err = PTR_ERR(priv->clk_eee);
> -		goto err;
> +		goto err_clk_disable;
>  	}
>  
>  	/* If this is an internal GPHY, power it on now, before UniMAC is
> 
Acked-by: Doug Berger <opendmb@gmail.com>

Thanks!

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH net] net: bcmgenet: add missed clk_disable_unprepare in bcmgenet_probe
  2020-07-20  9:36 [PATCH net] net: bcmgenet: add missed clk_disable_unprepare in bcmgenet_probe Zhang Changzhong
  2020-07-20 16:02 ` Doug Berger
@ 2020-07-20 17:01 ` Florian Fainelli
  2020-07-21  0:04 ` David Miller
  2 siblings, 0 replies; 4+ messages in thread
From: Florian Fainelli @ 2020-07-20 17:01 UTC (permalink / raw)
  To: Zhang Changzhong, opendmb, davem, kuba
  Cc: bcm-kernel-feedback-list, netdev, linux-kernel

On 7/20/20 2:36 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: c80d36ff63a5 ("net: bcmgenet: Use devm_clk_get_optional() to get the clocks")
> Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>

Acked-by: Florian Fainelli <f.fainelli@gmail.com>
-- 
Florian

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH net] net: bcmgenet: add missed clk_disable_unprepare in bcmgenet_probe
  2020-07-20  9:36 [PATCH net] net: bcmgenet: add missed clk_disable_unprepare in bcmgenet_probe Zhang Changzhong
  2020-07-20 16:02 ` Doug Berger
  2020-07-20 17:01 ` Florian Fainelli
@ 2020-07-21  0:04 ` David Miller
  2 siblings, 0 replies; 4+ messages in thread
From: David Miller @ 2020-07-21  0:04 UTC (permalink / raw)
  To: zhangchangzhong
  Cc: opendmb, f.fainelli, kuba, bcm-kernel-feedback-list, netdev,
	linux-kernel

From: Zhang Changzhong <zhangchangzhong@huawei.com>
Date: Mon, 20 Jul 2020 17:36:34 +0800

> 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: c80d36ff63a5 ("net: bcmgenet: Use devm_clk_get_optional() to get the clocks")
> Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>

Applied.

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-07-21  0:04 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-07-20  9:36 [PATCH net] net: bcmgenet: add missed clk_disable_unprepare in bcmgenet_probe Zhang Changzhong
2020-07-20 16:02 ` Doug Berger
2020-07-20 17:01 ` Florian Fainelli
2020-07-21  0:04 ` David Miller

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