diff --git a/[refs] b/[refs]
index d5208faebe58..5a3a32eba212 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ac1f0e9923356652f21756526e194a4a1a37dd38
+refs/heads/master: 03555d591d2c8ee9291db171c0d21d3c9cab04d9
diff --git a/trunk/drivers/pci/hotplug/cpcihp_zt5550.c b/trunk/drivers/pci/hotplug/cpcihp_zt5550.c
index 1c12e9171097..41f6a8d79c81 100644
--- a/trunk/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/trunk/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -296,13 +296,17 @@ static struct pci_driver zt5550_hc_driver = {
 static int __init zt5550_init(void)
 {
 	struct resource* r;
+	int rc;
 
 	info(DRIVER_DESC " version: " DRIVER_VERSION);
 	r = request_region(ENUM_PORT, 1, "#ENUM hotswap signal register");
 	if(!r)
 		return -EBUSY;
 
-	return pci_register_driver(&zt5550_hc_driver);
+	rc = pci_register_driver(&zt5550_hc_driver);
+	if(rc < 0)
+		release_region(ENUM_PORT, 1);
+	return rc;
 }
 
 static void __exit