linux-kernel - Re: [PATCH v2 1/4] usb: typec-mux: ptn36502: unregister typec switch on probe error and remove

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Date: Mon, 10 Jun 2024 15:51:20 +0300
From: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Luca Weiss <luca.weiss@...rphone.com>,
	linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/4] usb: typec-mux: ptn36502: unregister typec switch
 on probe error and remove

On Thu, Jun 06, 2024 at 03:11:13PM +0200, Neil Armstrong wrote:
> Add the missing call to typec_switch_put() when probe fails and
> the ptn36502_remove() call is called.
> 
> Fixes: 8e99dc783648 ("usb: typec: add support for PTN36502 redriver")
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>

Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> ---
>  drivers/usb/typec/mux/ptn36502.c | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/typec/mux/ptn36502.c b/drivers/usb/typec/mux/ptn36502.c
> index 0ec86ef32a87..88136a6d6f31 100644
> --- a/drivers/usb/typec/mux/ptn36502.c
> +++ b/drivers/usb/typec/mux/ptn36502.c
> @@ -322,8 +322,10 @@ static int ptn36502_probe(struct i2c_client *client)
>  				     "Failed to acquire orientation-switch\n");
>  
>  	ret = regulator_enable(ptn->vdd18_supply);
> -	if (ret)
> -		return dev_err_probe(dev, ret, "Failed to enable vdd18\n");
> +	if (ret) {
> +		ret = dev_err_probe(dev, ret, "Failed to enable vdd18\n");
> +		goto err_switch_put;
> +	}
>  
>  	ret = ptn36502_detect(ptn);
>  	if (ret)
> @@ -363,6 +365,9 @@ static int ptn36502_probe(struct i2c_client *client)
>  err_disable_regulator:
>  	regulator_disable(ptn->vdd18_supply);
>  
> +err_switch_put:
> +	typec_switch_put(ptn->typec_switch);
> +
>  	return ret;
>  }
>  
> @@ -374,6 +379,8 @@ static void ptn36502_remove(struct i2c_client *client)
>  	typec_switch_unregister(ptn->sw);
>  
>  	regulator_disable(ptn->vdd18_supply);
> +
> +	typec_switch_put(ptn->typec_switch);
>  }
>  
>  static const struct i2c_device_id ptn36502_table[] = {
> 
> -- 
> 2.34.1

-- 
heikki