[04/12] driver core fixes: retval check in class_register()

[Cornelia Huck]

From: Cornelia Huck <cornelia.huck@xxxxxxxxxx>

Check for return value of add_class_attrs() in class_register().

Signed-off-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx>

 class.c |    2 ++
 1 file changed, 2 insertions(+)

--- linux-2.6.18-rc6/drivers/base/class.c	2006-09-12 16:19:43.000000000 +0200
+++ linux-2.6.18-rc6+CH/drivers/base/class.c	2006-09-12 17:01:12.000000000 +0200
@@ -153,6 +153,8 @@ int class_register(struct class * cls)
 	error = subsystem_register(&cls->subsys);
 	if (!error) {
 		error = add_class_attrs(class_get(cls));
+		if (error)
+			subsystem_unregister(&cls->subsys);
 		class_put(cls);
 	}
 	return error;
-
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