USB: log an error message when USB enumeration fails

This patch (as1077) logs an error message whenever the kernel is
unable to enumerate a new USB device.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 9fc5179..1e23e36 100644 (file)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2708,6 +2708,7 @@ loop:
                if ((status == -ENOTCONN) || (status == -ENOTSUPP))
                        break;
        }
+       dev_err(hub_dev, "unable to enumerate USB device on port %d\n", port1);
  
 done:
        hub_port_disable(hub, port1, 1);