usb: common: usb-conn-gpio: Print error on failure to get VBUS

thierryreding · gregkh · commit f06c206aadda · 2020-08-18T12:13:44.000+02:00
The exact error that happened trying to get the VBUS supply can be useful to troubleshoot what's going on. Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20200806160248.3936771-2-thierry.reding@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git 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));
 		return PTR_ERR(info->vbus);
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -206,7 +206,7 @@ static int usb_conn_probe(struct platform_device *pdev)`
`206`	`206`
`207`	`207`	`if (IS_ERR(info->vbus)) {`
`208`	`208`	`if (PTR_ERR(info->vbus) != -EPROBE_DEFER)`
`209`		`- dev_err(dev, "failed to get vbus\n");`
	`209`	`+ dev_err(dev, "failed to get vbus: %ld\n", PTR_ERR(info->vbus));`
`210`	`210`	`return PTR_ERR(info->vbus);`
`211`	`211`	`}`
`212`	`212`