diff options
Diffstat (limited to 'term/users.c')
| -rw-r--r-- | term/users.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/term/users.c b/term/users.c index eb56ee70..0d7cb9ad 100644 --- a/term/users.c +++ b/term/users.c @@ -115,33 +115,36 @@ open_hook (struct trivfs_control *cntl, } /* Wait for carrier to turn on. */ - while (((termflags & NO_CARRIER) && !(termstate.c_cflag & CLOCAL)) - && !(flags & O_NONBLOCK) - && !cancel) + if (flags & (O_READ|O_WRITE)) { - err = (*bottom->assert_dtr) (); - if (err) + while (((termflags & NO_CARRIER) && !(termstate.c_cflag & CLOCAL)) + && !(flags & O_NONBLOCK) + && !cancel) + { + err = (*bottom->assert_dtr) (); + if (err) + { + mutex_unlock (&global_lock); + return err; + } + cancel = hurd_condition_wait (&carrier_alert, &global_lock); + } + + if ((termflags & NO_CARRIER) && !(termstate.c_cflag & CLOCAL)) { mutex_unlock (&global_lock); - return err; + return EWOULDBLOCK; + } + if (cancel) + { + mutex_unlock (&global_lock); + return EINTR; } - cancel = hurd_condition_wait (&carrier_alert, &global_lock); - } - if ((termflags & NO_CARRIER) && !(termstate.c_cflag & CLOCAL)) - { - mutex_unlock (&global_lock); - return EWOULDBLOCK; - } - if (cancel) - { - mutex_unlock (&global_lock); - return EINTR; + termflags |= TTY_OPEN; + if (!(termstate.c_cflag & CIGNORE)) + (*bottom->set_bits) (); } - - termflags |= TTY_OPEN; - if (!(termstate.c_cflag & CIGNORE)) - (*bottom->set_bits) (); mutex_unlock (&global_lock); return 0; |