Check RegisterWaitForSingleObject return in CrashGenerationServer::Start.

client/windows/crash_generation/crash_generation_server.cc

 // Copyright (c) 2008, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 200 matching lines @@
   // Event to signal the client connection and pipe reads and writes.
   overlapped_.hEvent = CreateEvent(NULL,   // Security descriptor.
                                    TRUE,   // Manual reset.
                                    FALSE,  // Initially signaled.
                                    NULL);  // Name.
   if (!overlapped_.hEvent) {
     return false;
   }
 
   // Register a callback with the thread pool for the client connection.
-  RegisterWaitForSingleObject(&pipe_wait_handle_,
-                              overlapped_.hEvent,
-                              OnPipeConnected,
-                              this,
-                              INFINITE,
-                              kPipeIOThreadFlags);
+  if (!RegisterWaitForSingleObject(&pipe_wait_handle_,
+                                   overlapped_.hEvent,
+                                   OnPipeConnected,
+                                   this,
+                                   INFINITE,
+                                   kPipeIOThreadFlags)) {
+    return false;
+  }
 
   pipe_ = CreateNamedPipe(pipe_name_.c_str(),
                           kPipeAttr,
                           kPipeMode,
                           1,
                           kOutBufferSize,
                           kInBufferSize,
                           0,
                           pipe_sec_attrs_);
   if (pipe_ == INVALID_HANDLE_VALUE) {
@@ skipping 606 matching lines @@
                                         client_thread_id,
                                         GetCurrentThreadId(),
                                         client_ex_info,
                                         client.assert_info(),
                                         client.dump_type(),
                                         true,
                                         dump_path);
 }
 
 }  // namespace google_breakpad