diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index 7e99c3b1f367..72ad59649ccc 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -605,8 +605,10 @@ static int __init sp5100_tco_init(void)
 	pr_info("SP5100/SB800 TCO WatchDog Timer Driver\n");
 
 	err = platform_driver_register(&sp5100_tco_driver);
-	if (err)
+	if (err) {
+		pci_dev_put(sp5100_tco_pci);
 		return err;
+	}
 
 	sp5100_tco_platform_device =
 		platform_device_register_simple(TCO_DRIVER_NAME, -1, NULL, 0);
@@ -619,6 +621,7 @@ static int __init sp5100_tco_init(void)
 
 unreg_platform_driver:
 	platform_driver_unregister(&sp5100_tco_driver);
+	pci_dev_put(sp5100_tco_pci);
 	return err;
 }
 
@@ -626,6 +629,7 @@ static void __exit sp5100_tco_exit(void)
 {
 	platform_device_unregister(sp5100_tco_platform_device);
 	platform_driver_unregister(&sp5100_tco_driver);
+	pci_dev_put(sp5100_tco_pci);
 }
 
 module_init(sp5100_tco_init);