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-rw-r--r--drivers/char/hvc_console.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 1994a92d473..f65b2e14a48 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -335,6 +335,8 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
} /* else count == 0 */
tty->driver_data = hp;
+ tty->low_latency = 1; /* Makes flushes to ldisc synchronous. */
+
hp->tty = tty;
/* Save for request_irq outside of spin_lock. */
irq = hp->irq;
@@ -633,9 +635,6 @@ static int hvc_poll(struct hvc_struct *hp)
tty_insert_flip_char(tty, buf[i], 0);
}
- if (count)
- tty_schedule_flip(tty);
-
/*
* Account for the total amount read in one loop, and if above
* 64 bytes, we do a quick schedule loop to let the tty grok
@@ -656,6 +655,9 @@ static int hvc_poll(struct hvc_struct *hp)
bail:
spin_unlock_irqrestore(&hp->lock, flags);
+ if (read_total)
+ tty_flip_buffer_push(tty);
+
return poll_mask;
}