Fix missing Result::ok() call in init

Test: m init
Change-Id: Ifc11f856704e6f8d08764b6ba2876423992fb8c2
diff --git a/init/init.cpp b/init/init.cpp
index bfef9e5..a530d18 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -120,7 +120,7 @@
         }
     };
 
-    if (auto result = epoll->RegisterHandler(epoll_fd, drain_socket); !result) {
+    if (auto result = epoll->RegisterHandler(epoll_fd, drain_socket); !result.ok()) {
         LOG(FATAL) << result.error();
     }
 }