--- zzzz-none-000/linux-2.6.32.60/drivers/usb/core/message.c	2012-10-07 21:41:24.000000000 +0000
+++ ur8-7270-606/linux-2.6.32.60/drivers/usb/core/message.c	2012-11-12 13:33:38.000000000 +0000
@@ -19,6 +19,8 @@
 #include "hcd.h"	/* for usbcore internals */
 #include "usb.h"
 
+/* 20121112 AVM/WK sg fix from kernel 3.3: don't set urb-dev=NULL */
+
 static void cancel_async_set_config(struct usb_device *udev);
 
 struct api_context {
@@ -312,7 +314,8 @@
 				retval = usb_unlink_urb(io->urbs [i]);
 				if (retval != -EINPROGRESS &&
 				    retval != -ENODEV &&
-				    retval != -EBUSY)
+				    retval != -EBUSY &&
+				    retval != -EIDRM)
 					dev_err(&io->dev->dev,
 						"%s, unlink --> %d\n",
 						__func__, retval);
@@ -321,7 +324,6 @@
 		}
 		spin_lock(&io->lock);
 	}
-	urb->dev = NULL;
 
 	/* on the last completion, signal usb_sg_wait() */
 	io->bytes += urb->actual_length;
@@ -569,7 +571,6 @@
 		case -ENXIO:	/* hc didn't queue this one */
 		case -EAGAIN:
 		case -ENOMEM:
-			io->urbs[i]->dev = NULL;
 			retval = 0;
 			yield();
 			break;
@@ -587,7 +588,6 @@
 
 			/* fail any uncompleted urbs */
 		default:
-			io->urbs[i]->dev = NULL;
 			io->urbs[i]->status = retval;
 			dev_dbg(&io->dev->dev, "%s, submit --> %d\n",
 				__func__, retval);
@@ -638,7 +638,10 @@
 			if (!io->urbs [i]->dev)
 				continue;
 			retval = usb_unlink_urb(io->urbs [i]);
-			if (retval != -EINPROGRESS && retval != -EBUSY)
+			if (retval != -EINPROGRESS 
+					&& retval != -ENODEV
+					&& retval != -EBUSY
+					&& retval != -EIDRM)
 				dev_warn(&io->dev->dev, "%s, unlink --> %d\n",
 					__func__, retval);
 		}