livepatch: fix uninitialized return value

Fix a potentially uninitialized return value in klp_enable_func().

Signed-off-by: Josh Poimboeuf <[email protected]>
Reviewed-by: Miroslav Benes <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

kernel/livepatch/core.c

@@ -410,7 +410,7 @@ static int klp_enable_func(struct klp_func *func)
 
 	func->state = KLP_ENABLED;
 
-	return ret;
+	return 0;
 
 err:
 	list_del_rcu(&func->stack_node);