From b614869de80759991c50827f0f1f35c13ef87f0d Mon Sep 17 00:00:00 2001
From: Alexander Tkachev
Date: Mon, 6 Jun 2016 13:37:51 +0600
Subject: CLOUD: Minor fixes

---
 backends/cloud/dropbox/dropboxuploadrequest.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'backends/cloud/dropbox')

diff --git a/backends/cloud/dropbox/dropboxuploadrequest.cpp b/backends/cloud/dropbox/dropboxuploadrequest.cpp
index bf8e43d7cb..5765892a70 100644
--- a/backends/cloud/dropbox/dropboxuploadrequest.cpp
+++ b/backends/cloud/dropbox/dropboxuploadrequest.cpp
@@ -48,6 +48,11 @@ DropboxUploadRequest::~DropboxUploadRequest() {
 void DropboxUploadRequest::start() {
 	_ignoreCallback = true;
 	if (_workingRequest) _workingRequest->finish();
+	if (!_contentsStream) {
+		warning("DropboxUploadRequest: cannot start because stream is invalid");
+		finishError(Networking::ErrorResponse(this, false, true, "", -1));
+		return;
+	}
 	if (!_contentsStream->seek(0)) {
 		warning("DropboxUploadRequest: cannot restart because stream couldn't seek(0)");
 		finishError(Networking::ErrorResponse(this, false, true, "", -1));
-- 
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