linux-kernel - Re: [PATCH 2/4] usb: typec: tcpm: Release the role mux when exiting

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Message-ID: <7e84f84a-4158-4582-6417-7942b2c4248b@roeck-us.net>
Date:   Mon, 30 Apr 2018 06:40:03 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Hans de Goede <hdegoede@...hat.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH 2/4] usb: typec: tcpm: Release the role mux when exiting

On 04/30/2018 05:41 AM, Heikki Krogerus wrote:
> The ref count for the USB role switch device must be
> released after we are done using the switch.
> 
> Fixes: c6962c29729c ("usb: typec: tcpm: Set USB role switch to device mode when configured as such")
> Signed-off-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>   drivers/usb/typec/tcpm.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
> index 1ee259bc14a5..66dc0773b9bf 100644
> --- a/drivers/usb/typec/tcpm.c
> +++ b/drivers/usb/typec/tcpm.c
> @@ -4652,6 +4652,7 @@ void tcpm_unregister_port(struct tcpm_port *port)
>   	for (i = 0; i < ARRAY_SIZE(port->port_altmode); i++)
>   		typec_unregister_altmode(port->port_altmode[i]);
>   	typec_unregister_port(port->typec_port);
> +	usb_role_switch_put(port->role_sw);
>   	tcpm_debugfs_exit(port);
>   	destroy_workqueue(port->wq);
>   }
>