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termios: check return value from semaphore obtain/release

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Raise a fatal error in case of failure.
This commit is contained in:
Gedare Bloom
2013-09-05 14:34:32 -04:00
parent 74d357513f
commit a803e04df6
1 changed files with 7 additions and 2 deletions
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cpukit/libcsupport/src/termios.c
+7 -2
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@@ -970,9 +970,14 @@ siproc (unsigned char c, struct rtems_termios_tty *tty)
* Obtain output semaphore if character will be echoed
*/
if (tty->termios.c_lflag & (ECHO|ECHOE|ECHOK|ECHONL|ECHOPRT|ECHOCTL|ECHOKE)) {
rtems_semaphore_obtain (tty->osem, RTEMS_WAIT, RTEMS_NO_TIMEOUT);
rtems_status_code sc;
sc = rtems_semaphore_obtain (tty->osem, RTEMS_WAIT, RTEMS_NO_TIMEOUT);
if (sc != RTEMS_SUCCESSFUL)
rtems_fatal_error_occurred (sc);
i = iproc (c, tty);
rtems_semaphore_release (tty->osem);
sc = rtems_semaphore_release (tty->osem);
if (sc != RTEMS_SUCCESSFUL)
rtems_fatal_error_occurred (sc);
}
else {
i = iproc (c, tty);