--- embedtools/src/imgupd.c	2014/02/05 23:11:55	1.5
+++ embedtools/src/imgupd.c	2014/02/05 23:31:55	1.6
@@ -3,7 +3,7 @@
  *  by Michael Pounov <misho@aitbg.com>
  *
  * $Author: misho $
- * $Id: imgupd.c,v 1.5 2014/02/05 23:11:55 misho Exp $
+ * $Id: imgupd.c,v 1.6 2014/02/05 23:31:55 misho Exp $
  *
  *************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -123,7 +123,7 @@ FillStore(int img, int fd)
 		if (wlen == -1) {
 			ESYSERR(0);
 			return -1;
-		} else if (!wlen || wlen != rlen) {
+		} else if (wlen && wlen != rlen) {
 			EERROR(EIO, "Readed %d bytes are not equal to written %d bytes\n", 
 					rlen, wlen);
 		} else