hub: debug message for failing to enable device

This error case isn't reported during enumeration.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 519f2c3..69687de 100644 (file)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4111,8 +4111,12 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 
                        did_new_scheme = true;
                        retval = hub_enable_device(udev);
-                       if (retval < 0)
+                       if (retval < 0) {
+                               dev_err(&udev->dev,
+                                       "hub failed to enable device, error %d\n",
+                                       retval);
                                goto fail;
+                       }
 
 #define GET_DESCRIPTOR_BUFSIZE 64
                        buf = kmalloc(GET_DESCRIPTOR_BUFSIZE, GFP_NOIO);