PCI: fix memory leak in aer_inject

Fixed probable typo in aer_inject cleanup code resulting in a memory
leak.

Acked-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

drivers/pci/pcie/aer/aer_inject.c

@@ -474,7 +474,7 @@ static void __exit aer_inject_exit(void)
 	}
 
 	spin_lock_irqsave(&inject_lock, flags);
-	list_for_each_entry_safe(err, err_next, &pci_bus_ops_list, list) {
+	list_for_each_entry_safe(err, err_next, &einjected, list) {
 		list_del(&err->list);
 		kfree(err);
 	}