On Tue, Oct 01, 2019 at 03:01:17PM +0300, Dan Carpenter wrote:
> The "port->typec_caps.data" and "port->typec_caps.type" variables are
> enums and in this context GCC will treat them as an unsigned int so they
> can never be less than zero.
>
> Fixes: ae8a2ca8a221 ("usb: typec: Group all TCPCI/TCPM code together")
> Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Looks OK to me.
Reviewed-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
> ---
> v2: preserve the error code
>
> drivers/usb/typec/tcpm/tcpm.c | 14 ++++++++------
> 1 file changed, 8 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> index 96562744101c..5f61d9977a15 100644
> --- a/drivers/usb/typec/tcpm/tcpm.c
> +++ b/drivers/usb/typec/tcpm/tcpm.c
> @@ -4409,18 +4409,20 @@ static int tcpm_fw_get_caps(struct tcpm_port *port,
> /* USB data support is optional */
> ret = fwnode_property_read_string(fwnode, "data-role", &cap_str);
> if (ret == 0) {
> - port->typec_caps.data = typec_find_port_data_role(cap_str);
> - if (port->typec_caps.data < 0)
> - return -EINVAL;
> + ret = typec_find_port_data_role(cap_str);
> + if (ret < 0)
> + return ret;
> + port->typec_caps.data = ret;
> }
>
> ret = fwnode_property_read_string(fwnode, "power-role", &cap_str);
> if (ret < 0)
> return ret;
>
> - port->typec_caps.type = typec_find_port_power_role(cap_str);
> - if (port->typec_caps.type < 0)
> - return -EINVAL;
> + ret = typec_find_port_power_role(cap_str);
> + if (ret < 0)
> + return ret;
> + port->typec_caps.type = ret;
> port->port_type = port->typec_caps.type;
>
> if (port->port_type == TYPEC_PORT_SNK)
> --
> 2.20.1
thanks,
--
heikki
