[PATCH] staging/usbip: Fix vhci_hcd attach failure error message to be informative

[Shuah Khan]

When attach fails due to unsupported and/or invalid bus speed, the message
vhci_hcd prints out doesn't include any useful information as to what caused
the failure. Change the message to be informative and use usb_speed_string()
to get the right speed string from usb common.

Signed-off-by: Shuah Khan <shuah.kh@xxxxxxxxxxx>
---
 drivers/staging/usbip/vhci_sysfs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/usbip/vhci_sysfs.c b/drivers/staging/usbip/vhci_sysfs.c
index 9b51586..0141bc3 100644
--- a/drivers/staging/usbip/vhci_sysfs.c
+++ b/drivers/staging/usbip/vhci_sysfs.c
@@ -149,7 +149,8 @@ static int valid_args(__u32 rhport, enum usb_device_speed speed)
 	case USB_SPEED_WIRELESS:
 		break;
 	default:
-		pr_err("speed %d\n", speed);
+		pr_err("Failed attach request for unsupported USB speed: %s\n",
+			usb_speed_string(speed));
 		return -EINVAL;
 	}
 
-- 
1.8.3.2

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