Re: [PATCH v2 1/2] usb: typec: ucsi: glink: fix off-by-one in connector_status

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On Sat, Nov 09, 2024 at 02:04:14AM +0200, Dmitry Baryshkov wrote:
> UCSI connector's indices start from 1 up to 3, PMIC_GLINK_MAX_PORTS.
> Correct the condition in the pmic_glink_ucsi_connector_status()
> callback, fixing Type-C orientation reporting for the third USB-C
> connector.
> 
> Fixes: 76716fd5bf09 ("usb: typec: ucsi: glink: move GPIO reading into connector_status callback")
> Cc: stable@xxxxxxxxxxxxxxx
> Reported-by: Abel Vesa <abel.vesa@xxxxxxxxxx>
> Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> Reviewed-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> Tested-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

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

> ---
>  drivers/usb/typec/ucsi/ucsi_glink.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
> index 3e4d88ab338e50d4265df15fc960907c36675282..2e12758000a7d2d62f6e0b273cb29eafa631122c 100644
> --- a/drivers/usb/typec/ucsi/ucsi_glink.c
> +++ b/drivers/usb/typec/ucsi/ucsi_glink.c
> @@ -185,7 +185,7 @@ static void pmic_glink_ucsi_connector_status(struct ucsi_connector *con)
>  	struct pmic_glink_ucsi *ucsi = ucsi_get_drvdata(con->ucsi);
>  	int orientation;
>  
> -	if (con->num >= PMIC_GLINK_MAX_PORTS ||
> +	if (con->num > PMIC_GLINK_MAX_PORTS ||
>  	    !ucsi->port_orientation[con->num - 1])
>  		return;
>  
> 
> -- 
> 2.39.5

-- 
heikki




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