[SCSI] iscsi: return task found during search

from davidw@netapp.com:

remove task type should return a task on success.
Signed-off-by: NMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/libiscsi.c

@@ -985,7 +985,7 @@ iscsi_remove_##tasktype(struct kfifo *fifo, uint32_t itt)		\
 									\
 		if (task->itt == itt) {					\
 			debug_scsi("matched task\n");			\
-			break;						\
+			return task;					\
 		}							\
 									\
 		__kfifo_put(fifo, (void*)&task, sizeof(void*));		\