diff options
Diffstat (limited to 'drivers/staging/speakup/spk_ttyio.c')
| -rw-r--r-- | drivers/staging/speakup/spk_ttyio.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers/staging/speakup/spk_ttyio.c index c92bbd05516e..0057eb980bec 100644 --- a/drivers/staging/speakup/spk_ttyio.c +++ b/drivers/staging/speakup/spk_ttyio.c @@ -128,7 +128,8 @@ struct spk_io_ops spk_ttyio_ops = { }; EXPORT_SYMBOL_GPL(spk_ttyio_ops); -static inline void get_termios(struct tty_struct *tty, struct ktermios *out_termios) +static inline void get_termios(struct tty_struct *tty, + struct ktermios *out_termios) { down_read(&tty->termios_rwsem); *out_termios = tty->termios; @@ -167,8 +168,9 @@ static int spk_ttyio_initialise_ldisc(struct spk_synth *synth) tmp_termios.c_cflag |= CRTSCTS; tty_set_termios(tty, &tmp_termios); /* - * check c_cflag to see if it's updated as tty_set_termios may not return - * error even when no tty bits are changed by the request. + * check c_cflag to see if it's updated as tty_set_termios + * may not return error even when no tty bits are + * changed by the request. */ get_termios(tty, &tmp_termios); if (!(tmp_termios.c_cflag & CRTSCTS)) @@ -207,10 +209,11 @@ static int spk_ttyio_out(struct spk_synth *in_synth, const char ch) /* No room */ return 0; if (ret < 0) { - pr_warn("%s: I/O error, deactivating speakup\n", in_synth->long_name); - /* No synth any more, so nobody will restart TTYs, and we thus - * need to do it ourselves. Now that there is no synth we can - * let application flood anyway + pr_warn("%s: I/O error, deactivating speakup\n", + in_synth->long_name); + /* No synth any more, so nobody will restart TTYs, + * and we thus need to do it ourselves. Now that there + * is no synth we can let application flood anyway */ in_synth->alive = 0; speakup_start_ttys(); @@ -265,7 +268,8 @@ static void spk_ttyio_send_xchar(char ch) return; } - speakup_tty->ops->send_xchar(speakup_tty, ch); + if (speakup_tty->ops->send_xchar) + speakup_tty->ops->send_xchar(speakup_tty, ch); mutex_unlock(&speakup_tty_mutex); } @@ -277,7 +281,8 @@ static void spk_ttyio_tiocmset(unsigned int set, unsigned int clear) return; } - speakup_tty->ops->tiocmset(speakup_tty, set, clear); + if (speakup_tty->ops->tiocmset) + speakup_tty->ops->tiocmset(speakup_tty, set, clear); mutex_unlock(&speakup_tty_mutex); } @@ -369,7 +374,8 @@ const char *spk_ttyio_synth_immediate(struct spk_synth *synth, const char *buff) while ((ch = *buff)) { if (ch == '\n') ch = synth->procspeech; - if (tty_write_room(speakup_tty) < 1 || !synth->io_ops->synth_out(synth, ch)) + if (tty_write_room(speakup_tty) < 1 || + !synth->io_ops->synth_out(synth, ch)) return buff; buff++; } |