Index: src/lib/libmd/mdXhl.c
===================================================================
--- src/lib/libmd/mdXhl.c	(.../BR_RIPT_BSD10P2)	(revision 476040)
+++ src/lib/libmd/mdXhl.c	(.../BR_RIPT_BSD10P2_LIBMD)	(revision 476065)
@@ -67,21 +67,21 @@ MDXFileChunk(const char *filename, char
 		len = stbuf.st_size - ofs;
 	if (lseek(f, ofs, SEEK_SET) < 0)
 		return 0;
 	n = len;
 	i = 0;
 	while (n > 0) {
 		if (n > sizeof(buffer))
 			i = read(f, buffer, sizeof(buffer));
 		else
 			i = read(f, buffer, n);
-		if (i < 0)
+		if (i <= 0)
 			break;
 		MDXUpdate(&ctx, buffer, i);
 		n -= i;
 	}
 	e = errno;
 	close(f);
 	errno = e;
 	if (i < 0)
 		return 0;
 	return (MDXEnd(&ctx, buf));