diff -urpN busybox-1.17.0/coreutils/dos2unix.c busybox-1.17.0-dos2unix/coreutils/dos2unix.c
--- busybox-1.17.0/coreutils/dos2unix.c	2010-06-24 04:40:43.000000000 +0200
+++ busybox-1.17.0-dos2unix/coreutils/dos2unix.c	2010-07-17 22:40:21.021422169 +0200
@@ -92,7 +92,7 @@ int dos2unix_main(int argc UNUSED_PARAM,
 	do {
 		/* might be convert(NULL) if there is no filename given */
 		convert(*argv, conv_type);
-	} while (*++argv);
+	} while (*argv && *++argv);
 
 	return 0;
 }