From 261865cf6f2792316b2e3d0b46ff7573806b7402 Mon Sep 17 00:00:00 2001
From: ficeto <ficeto@Hristos-Mac-mini-2.local>
Date: Thu, 14 May 2015 16:08:16 +0300
Subject: [PATCH] fix FSFile template

---
 cores/esp8266/FileSystem.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cores/esp8266/FileSystem.h b/cores/esp8266/FileSystem.h
index d675da114..7a4563357 100755
--- a/cores/esp8266/FileSystem.h
+++ b/cores/esp8266/FileSystem.h
@@ -61,13 +61,15 @@ public:
     size_t bytesWritten = 0;
     while (true){
       size_t available = src.available();
+      if(!available)
+        return bytesWritten;
       size_t willWrite = (available < bufferSize) ? available : bufferSize;
       src.read(obuf, willWrite);
       size_t cb = write(obuf, willWrite);
-      bytesWritten += cb;
       if (cb != willWrite) {
         return bytesWritten;
       }
+      bytesWritten += cb;
     }
     return bytesWritten;
   }