diff options
Diffstat (limited to 'console-tools/deallocvt.c')
| -rw-r--r-- | console-tools/deallocvt.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/console-tools/deallocvt.c b/console-tools/deallocvt.c index ae4dbb5..1e13ff6 100644 --- a/console-tools/deallocvt.c +++ b/console-tools/deallocvt.c @@ -17,8 +17,10 @@ int deallocvt_main(int argc, char *argv[]) { int fd, num, i; - if (argc < 1) /* unlikely */ - exit(1); + if ( ( argc != 2) || (**(argv+1) == '-' ) ) { + usage ("deallocvt N\n\nDeallocate unused virtual terminal /dev/ttyN\n"); + } + progname = argv[0]; fd = get_console_fd("/dev/console"); |