diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index 22d83d4..9feeeef 100644
--- a/arch/powerpc/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -147,15 +147,12 @@
 
 int of_register_driver(struct of_platform_driver *drv)
 {
-	int count = 0;
-
 	/* initialize common driver fields */
 	drv->driver.name = drv->name;
 	drv->driver.bus = &of_platform_bus_type;
 
 	/* register with core */
-	count = driver_register(&drv->driver);
-	return count ? count : 1;
+	return driver_register(&drv->driver);
 }
 
 void of_unregister_driver(struct of_platform_driver *drv)
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index db2ae71..4eb05d7 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -629,8 +629,6 @@
 
 static int __init smu_init_sysfs(void)
 {
-	int rc;
-
 	/*
 	 * Due to sysfs bogosity, a sysdev is not a real device, so
 	 * we should in fact create both if we want sysdev semantics
@@ -639,7 +637,7 @@
 	 * I'm a bit too far from figuring out how that works with those
 	 * new chipsets, but that will come back and bite us
 	 */
-	rc = of_register_driver(&smu_of_platform_driver);
+	of_register_driver(&smu_of_platform_driver);
 	return 0;
 }