firewire: fix failure path in ohci_enable_phys_dma

"goto out" happens with the lock taken.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>

drivers/firewire/fw-ohci.c

@@ -850,10 +850,8 @@ ohci_enable_phys_dma(struct fw_card *card, int node_id, int generation)
 			  1 << (node_id - 32));
 	}
 	flush_writes(ohci);
-
-	spin_unlock_irqrestore(&ohci->lock, flags);
-
  out:
+	spin_unlock_irqrestore(&ohci->lock, flags);
 	return retval;
 }