Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[cascardo/linux.git] / drivers / tty / n_tty.c

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index cb8017a..d15624c 100644 (file)
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -817,8 +817,7 @@ static void process_echoes(struct tty_struct *tty)
        struct n_tty_data *ldata = tty->disc_data;
        size_t echoed;
 
-       if ((!L_ECHO(tty) && !L_ECHONL(tty)) ||
-           ldata->echo_mark == ldata->echo_tail)
+       if (ldata->echo_mark == ldata->echo_tail)
                return;
 
        mutex_lock(&ldata->output_lock);
@@ -1244,7 +1243,8 @@ n_tty_receive_signal_char(struct tty_struct *tty, int signal, unsigned char c)
        if (L_ECHO(tty)) {
                echo_char(c, tty);
                commit_echoes(tty);
-       }
+       } else
+               process_echoes(tty);
        isig(signal, tty);
        return;
 }
@@ -1274,7 +1274,7 @@ n_tty_receive_char_special(struct tty_struct *tty, unsigned char c)
        if (I_IXON(tty)) {
                if (c == START_CHAR(tty)) {
                        start_tty(tty);
-                       commit_echoes(tty);
+                       process_echoes(tty);
                        return 0;
                }
                if (c == STOP_CHAR(tty)) {
@@ -1820,8 +1820,10 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
         * Fix tty hang when I_IXON(tty) is cleared, but the tty
         * been stopped by STOP_CHAR(tty) before it.
         */
-       if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped)
+       if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped) {
                start_tty(tty);
+               process_echoes(tty);
+       }
 
        /* The termios change make the tty ready for I/O */
        if (waitqueue_active(&tty->write_wait))
@@ -1896,7 +1898,7 @@ err:
 static inline int input_available_p(struct tty_struct *tty, int poll)
 {
        struct n_tty_data *ldata = tty->disc_data;
-       int amt = poll && !TIME_CHAR(tty) ? MIN_CHAR(tty) : 1;
+       int amt = poll && !TIME_CHAR(tty) && MIN_CHAR(tty) ? MIN_CHAR(tty) : 1;
 
        if (ldata->icanon && !L_EXTPROC(tty)) {
                if (ldata->canon_head != ldata->read_tail)