diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index bbcde58e2a11..aab8d8910319 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1733,7 +1733,12 @@ static struct platform_driver sm501_plat_driver = {
 
 static int __init sm501_base_init(void)
 {
-	platform_driver_register(&sm501_plat_driver);
+	int ret;
+
+	ret = platform_driver_register(&sm501_plat_driver);
+	if (ret < 0)
+		return ret;
+
 	return pci_register_driver(&sm501_pci_driver);
 }