[PATCH] usb: dwc3: meson-g12a: add missed regulator_disable

[PATCH] usb: dwc3: meson-g12a: add missed regulator_disable

[Chuhong Yuan]

The driver forgets to disable the regulator in probe failure and remove.
Add the missed calls to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
 drivers/usb/dwc3/dwc3-meson-g12a.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
index 8a3ec1a951fe..d9723d1ad8eb 100644
--- a/drivers/usb/dwc3/dwc3-meson-g12a.c
+++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
@@ -458,7 +458,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
 						dwc3_meson_g12a_irq_thread,
 						IRQF_ONESHOT, pdev->name, priv);
 		if (ret)
-			return ret;
+			goto err_regulator_disable;
 	}
 
 	dwc3_meson_g12a_usb_init(priv);
@@ -467,7 +467,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
 	for (i = 0 ; i < PHY_COUNT ; ++i) {
 		ret = phy_init(priv->phys[i]);
 		if (ret)
-			return ret;
+			goto err_regulator_disable;
 	}
 
 	/* Set PHY Power */
@@ -517,7 +517,9 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
 err_phys_exit:
 	for (i = 0 ; i < PHY_COUNT ; ++i)
 		phy_exit(priv->phys[i]);
-
+err_regulator_disable:
+	if (priv->vbus)
+		regulator_disable(priv->vbus);
 	return ret;
 }
 
@@ -536,6 +538,9 @@ static int dwc3_meson_g12a_remove(struct platform_device *pdev)
 		phy_exit(priv->phys[i]);
 	}
 
+	if (priv->vbus)
+		regulator_disable(priv->vbus);
+
 	pm_runtime_disable(dev);
 	pm_runtime_put_noidle(dev);
 	pm_runtime_set_suspended(dev);
-- 
2.24.0


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Re: [PATCH] usb: dwc3: meson-g12a: add missed regulator_disable

[Neil Armstrong]

On 18/11/2019 12:41, Chuhong Yuan wrote:
> The driver forgets to disable the regulator in probe failure and remove.
> Add the missed calls to fix it.
> 
> Signed-off-by: Chuhong Yuan <hslester96@gmail.com>

Fixes: f90db10779ad ("usb: dwc3: meson-g12a: Add support for IRQ based OTG switching")

> ---
>  drivers/usb/dwc3/dwc3-meson-g12a.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
> index 8a3ec1a951fe..d9723d1ad8eb 100644
> --- a/drivers/usb/dwc3/dwc3-meson-g12a.c
> +++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
> @@ -458,7 +458,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
>  						dwc3_meson_g12a_irq_thread,
>  						IRQF_ONESHOT, pdev->name, priv);
>  		if (ret)
> -			return ret;
> +			goto err_regulator_disable;
>  	}
>  
>  	dwc3_meson_g12a_usb_init(priv);
> @@ -467,7 +467,7 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
>  	for (i = 0 ; i < PHY_COUNT ; ++i) {
>  		ret = phy_init(priv->phys[i]);
>  		if (ret)
> -			return ret;
> +			goto err_regulator_disable;
>  	}
>  
>  	/* Set PHY Power */
> @@ -517,7 +517,9 @@ static int dwc3_meson_g12a_probe(struct platform_device *pdev)
>  err_phys_exit:
>  	for (i = 0 ; i < PHY_COUNT ; ++i)
>  		phy_exit(priv->phys[i]);
> -
> +err_regulator_disable:
> +	if (priv->vbus)
> +		regulator_disable(priv->vbus);
>  	return ret;
>  }
>  
> @@ -536,6 +538,9 @@ static int dwc3_meson_g12a_remove(struct platform_device *pdev)
>  		phy_exit(priv->phys[i]);
>  	}
>  
> +	if (priv->vbus)
> +		regulator_disable(priv->vbus);
> +
>  	pm_runtime_disable(dev);
>  	pm_runtime_put_noidle(dev);
>  	pm_runtime_set_suspended(dev);
> 

Acked-by: Neil Armstrong <narmstrong@baylibre.com>

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