[PATCH] USB: get rid of minor log spamming

Routine cases like handoff-to-companion shouldn't trigger diagnostics.
This gets rid of some recently added log spamming.  It's routine for
hub_port_wait_reset() to return -ENOTCONN to indicate handoff from
highspeed hubs to companions, so an error message is incorrect.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/core/hub.c

@@ -1460,7 +1460,7 @@ static int hub_port_reset(struct usb_hub *hub, int port1,
 					port1, status);
 		else {
 			status = hub_port_wait_reset(hub, port1, udev, delay);
-			if (status)
+			if (status && status != -ENOTCONN)
 				dev_dbg(hub->intfdev,
 						"port_wait_reset: err = %d\n",
 						status);