diff options
| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-06-10 14:36:44 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-06-12 16:11:25 +0200 |
| commit | fed92f5f67bcaeffa6cb6ceebf5ddfdbcaff7fb8 (patch) | |
| tree | bb3edf6e2c9d1856a1a5fbecdb10a6b8e5893dbd /cpukit | |
| parent | termios: Expand critical section (diff) | |
| download | rtems-fed92f5f67bcaeffa6cb6ceebf5ddfdbcaff7fb8.tar.bz2 | |
termios: Notify driver about inactive transmit
Returning this state in the return value leads to race conditions on
SMP. The inactive state notification must be inside the critical
section.
Diffstat (limited to 'cpukit')
| -rw-r--r-- | cpukit/libcsupport/src/termios.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/termios.c b/cpukit/libcsupport/src/termios.c index 5c489152ee..1c87e6b2c6 100644 --- a/cpukit/libcsupport/src/termios.c +++ b/cpukit/libcsupport/src/termios.c @@ -1332,6 +1332,7 @@ rtems_termios_refill_transmitter (struct rtems_termios_tty *tty) wakeUpWriterTask = true; } + (*tty->device.write) (tty->minor, NULL, 0); nToSend = 0; } else { len = tty->t_dqlen; @@ -1351,6 +1352,7 @@ rtems_termios_refill_transmitter (struct rtems_termios_tty *tty) * Buffer has become empty */ tty->rawOutBufState = rob_idle; + (*tty->device.write) (tty->minor, NULL, 0); nToSend = 0; /* @@ -1367,6 +1369,7 @@ rtems_termios_refill_transmitter (struct rtems_termios_tty *tty) /* set flag, that output has been stopped */ tty->flow_ctrl |= FL_OSTOP; tty->rawOutBufState = rob_busy; /*apm*/ + (*tty->device.write) (tty->minor, NULL, 0); nToSend = 0; } else { /* |