diff options
| -rw-r--r-- | term/devio.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/term/devio.c b/term/devio.c index 671d63d1..e8f7f0b6 100644 --- a/term/devio.c +++ b/term/devio.c @@ -339,6 +339,11 @@ static void devio_abandon_physical_output () { int val = D_WRITE; + + /* If this variable is clear, then carrier is gone, so we + have nothing to do. */ + if (!phys_reply_writes_pi) + return; mach_port_deallocate (mach_task_self (), phys_reply_writes); ports_reallocate_port (phys_reply_writes_pi); |