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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-27 01:57:53 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-27 01:57:53 (GMT)
commit8095e4e81b4bc38eef7e0be99f9ecc744eaa1683 (patch)
treed3b5100db11784093e78513f3429022569b4bf7b /drivers/tty/n_tty.c
parent6b5f146535fe6969aeded9f00b0bc42b3783f7fd (diff)
parente4aa937ec75df0eea0bee03bffa3303ad36c986b (diff)
downloadlinux-fsl-qoriq-8095e4e81b4bc38eef7e0be99f9ecc744eaa1683.tar.xz
Merge 3.10-rc3 into tty-next
We want these fixes. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/n_tty.c')
-rw-r--r--drivers/tty/n_tty.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 905a6fa..cdcdb0e 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1567,6 +1567,14 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
ldata->real_raw = 0;
}
n_tty_set_room(tty);
+ /*
+ * 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) {
+ start_tty(tty);
+ }
+
/* The termios change make the tty ready for I/O */
wake_up_interruptible(&tty->write_wait);
wake_up_interruptible(&tty->read_wait);