diff options
| author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2018-07-23 09:13:12 -0700 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2018-07-23 09:13:12 -0700 |
| commit | c74a7469f97c0f40b46e82ee979f9fb1bb6e847c (patch) | |
| tree | f2690a1a916b73ef94657fbf0e0141ae57701825 /drivers/tty/pty.c | |
| parent | 6f15a7de86c8cf2dc09fc9e6d07047efa40ef809 (diff) | |
| parent | 500775074f88d9cf5416bed2ca19592812d62c41 (diff) | |
Merge drm/drm-next into drm-intel-next-queued
We need a backmerge to get DP_DPCD_REV_14 before we push other
i915 changes to dinq that could break compilation.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/tty/pty.c')
| -rw-r--r-- | drivers/tty/pty.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index 6c7151edd715..b0e2c4847a5d 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -110,16 +110,19 @@ static void pty_unthrottle(struct tty_struct *tty) static int pty_write(struct tty_struct *tty, const unsigned char *buf, int c) { struct tty_struct *to = tty->link; + unsigned long flags; if (tty->stopped) return 0; if (c > 0) { + spin_lock_irqsave(&to->port->lock, flags); /* Stuff the data into the input queue of the other end */ c = tty_insert_flip_string(to->port, buf, c); /* And shovel */ if (c) tty_flip_buffer_push(to->port); + spin_unlock_irqrestore(&to->port->lock, flags); } return c; } |