On Thu, Aug 06, 2020 at 06:02:48PM +0200, Thierry Reding wrote:
> The exact error that happened trying to get the VBUS supply can be
> useful to troubleshoot what's going on.
[...]
> --- a/drivers/usb/common/usb-conn-gpio.c
> +++ b/drivers/usb/common/usb-conn-gpio.c
> @@ -206,7 +206,7 @@ static int usb_conn_probe(struct platform_device *pdev)
>
> if (IS_ERR(info->vbus)) {
> if (PTR_ERR(info->vbus) != -EPROBE_DEFER)
> - dev_err(dev, "failed to get vbus\n");
> + dev_err(dev, "failed to get vbus: %ld\n", PTR_ERR(info->vbus));
There is now a nice "%pe" format, that can make this even better.
Best Regards,
Michał Mirosław
