Upstream version 7.36.149.0

[platform/framework/web/crosswalk.git] / src / chrome / browser / chromeos / drive / drive_file_stream_reader.cc

diff --git a/src/chrome/browser/chromeos/drive/drive_file_stream_reader.cc b/src/chrome/browser/chromeos/drive/drive_file_stream_reader.cc
index 44d9bf4..4739398 100644 (file)
--- a/src/chrome/browser/chromeos/drive/drive_file_stream_reader.cc
+++ b/src/chrome/browser/chromeos/drive/drive_file_stream_reader.cc
@@ -113,6 +113,9 @@ int LocalReaderProxy::Read(net::IOBuffer* buffer, int buffer_length,
     buffer_length = static_cast<int>(remaining_length_);
   }
 
+  if (!buffer_length)
+    return 0;
+
   file_reader_->Read(buffer, buffer_length,
                      base::Bind(&LocalReaderProxy::OnReadCompleted,
                                 weak_ptr_factory_.GetWeakPtr(), callback));