Re: usb: typec: ucsi: Clear EVENT_PENDING bit if ucsi_send_command fails

[Heikki Krogerus]

On Mon, Sep 11, 2023 at 02:34:15PM +0530, Prashanth K wrote:
> Currently if ucsi_send_command() fails, then we bail out without
> clearing EVENT_PENDING flag. So when the next connector change
> event comes, ucsi_connector_change() won't queue the con->work,
> because of which none of the new events will be processed.
> 
> Fix this by clearing EVENT_PENDING flag if ucsi_send_command()
> fails.
> 
> Cc: <stable@xxxxxxxxxxxxxxx> # 5.16
> Fixes: 512df95b9432 ("usb: typec: ucsi: Better fix for missing unplug events issue")
> Signed-off-by: Prashanth K <quic_prashk@xxxxxxxxxxx>

Acked-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>

> ---
>  drivers/usb/typec/ucsi/ucsi.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
> index c6dfe3d..509c67c 100644
> --- a/drivers/usb/typec/ucsi/ucsi.c
> +++ b/drivers/usb/typec/ucsi/ucsi.c
> @@ -884,6 +884,7 @@ static void ucsi_handle_connector_change(struct work_struct *work)
>  	if (ret < 0) {
>  		dev_err(ucsi->dev, "%s: GET_CONNECTOR_STATUS failed (%d)\n",
>  			__func__, ret);
> +		clear_bit(EVENT_PENDING, &con->ucsi->flags);
>  		goto out_unlock;
>  	}
>  

thanks,

-- 
heikki