Re: [PATCH v2] usb: typec: Fix fast_role_swap_current show function

[Heikki Krogerus <heikki.krogerus@linux.intel.com>]

On Wed, Jun 07, 2023 at 07:33:26PM +0000, Pavan Holla wrote:
> The current implementation mistakenly performs a & operation on
> the output of sysfs_emit. This patch performs the & operation before
> calling sysfs_emit.
> 
> Fixes: 662a60102c12 ("usb: typec: Separate USB Power Delivery from USB Type-C")
> Reported-by: Benson Leung <bleung@chromium.org>
> Signed-off-by: Pavan Holla <pholla@chromium.org>

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

> ---
>  drivers/usb/typec/pd.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/typec/pd.c b/drivers/usb/typec/pd.c
> index 0bcde1ff4d39..8cc66e4467c4 100644
> --- a/drivers/usb/typec/pd.c
> +++ b/drivers/usb/typec/pd.c
> @@ -95,7 +95,7 @@ peak_current_show(struct device *dev, struct device_attribute *attr, char *buf)
>  static ssize_t
>  fast_role_swap_current_show(struct device *dev, struct device_attribute *attr, char *buf)
>  {
> -	return sysfs_emit(buf, "%u\n", to_pdo(dev)->pdo >> PDO_FIXED_FRS_CURR_SHIFT) & 3;
> +	return sysfs_emit(buf, "%u\n", (to_pdo(dev)->pdo >> PDO_FIXED_FRS_CURR_SHIFT) & 3);
>  }
>  static DEVICE_ATTR_RO(fast_role_swap_current);
>  
> -- 
> 2.41.0.rc0.172.g3f132b7071-goog

-- 
heikki