diff options
Diffstat (limited to 'drivers/tty/tty_ioctl.c')
| -rw-r--r-- | drivers/tty/tty_ioctl.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c index 9c5aebfe7053..0ea351388724 100644 --- a/drivers/tty/tty_ioctl.c +++ b/drivers/tty/tty_ioctl.c @@ -216,7 +216,7 @@ int tty_unthrottle_safe(struct tty_struct *tty) void tty_wait_until_sent(struct tty_struct *tty, long timeout) { - tty_debug_wait_until_sent(tty, "\n"); + tty_debug_wait_until_sent(tty, "wait until sent, timeout=%ld\n", timeout); if (!timeout) timeout = MAX_SCHEDULE_TIMEOUT; @@ -239,19 +239,14 @@ EXPORT_SYMBOL(tty_wait_until_sent); * Termios Helper Methods */ -static void unset_locked_termios(struct ktermios *termios, - struct ktermios *old, - struct ktermios *locked) +static void unset_locked_termios(struct tty_struct *tty, struct ktermios *old) { + struct ktermios *termios = &tty->termios; + struct ktermios *locked = &tty->termios_locked; int i; #define NOSET_MASK(x, y, z) (x = ((x) & ~(z)) | ((y) & (z))) - if (!locked) { - printk(KERN_WARNING "Warning?!? termios_locked is NULL.\n"); - return; - } - NOSET_MASK(termios->c_iflag, old->c_iflag, locked->c_iflag); NOSET_MASK(termios->c_oflag, old->c_oflag, locked->c_oflag); NOSET_MASK(termios->c_cflag, old->c_cflag, locked->c_cflag); @@ -463,10 +458,8 @@ void tty_termios_encode_baud_rate(struct ktermios *termios, if (ifound == -1 && (ibaud != obaud || ibinput)) termios->c_cflag |= (BOTHER << IBSHIFT); #else - if (ifound == -1 || ofound == -1) { - printk_once(KERN_WARNING "tty: Unable to return correct " - "speed data as your architecture needs updating.\n"); - } + if (ifound == -1 || ofound == -1) + pr_warn_once("tty: Unable to return correct speed data as your architecture needs updating.\n"); #endif } EXPORT_SYMBOL_GPL(tty_termios_encode_baud_rate); @@ -556,7 +549,7 @@ int tty_set_termios(struct tty_struct *tty, struct ktermios *new_termios) down_write(&tty->termios_rwsem); old_termios = tty->termios; tty->termios = *new_termios; - unset_locked_termios(&tty->termios, &old_termios, &tty->termios_locked); + unset_locked_termios(tty, &old_termios); if (tty->ops->set_termios) tty->ops->set_termios(tty, &old_termios); @@ -1147,16 +1140,12 @@ int n_tty_ioctl_helper(struct tty_struct *tty, struct file *file, spin_unlock_irq(&tty->flow_lock); break; case TCIOFF: - down_read(&tty->termios_rwsem); if (STOP_CHAR(tty) != __DISABLED_CHAR) retval = tty_send_xchar(tty, STOP_CHAR(tty)); - up_read(&tty->termios_rwsem); break; case TCION: - down_read(&tty->termios_rwsem); if (START_CHAR(tty) != __DISABLED_CHAR) retval = tty_send_xchar(tty, START_CHAR(tty)); - up_read(&tty->termios_rwsem); break; default: return -EINVAL; |