driver core fixes: device_register() retval check in platform.c

Check the return value of device_register() in platform_bus_init(). Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
git-mirror · Feb 7, 2007 · fbfb144 · fbfb144
1 parent cb360bb
commit fbfb144
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
@@ -611,8 +611,15 @@ EXPORT_SYMBOL_GPL(platform_bus_type);
 
 int __init platform_bus_init(void)
 {
-	device_register(&platform_bus);
-	return bus_register(&platform_bus_type);
+	int error;
+
+	error = device_register(&platform_bus);
+	if (error)
+		return error;
+	error =  bus_register(&platform_bus_type);
+	if (error)
+		device_unregister(&platform_bus);
+	return error;
 }
 
 #ifndef ARCH_HAS_DMA_GET_REQUIRED_MASK