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path: root/drivers/tty/pty.c
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Diffstat (limited to 'drivers/tty/pty.c')
-rw-r--r--drivers/tty/pty.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 74bfabe5b453..752dab3356d7 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -111,21 +111,11 @@ 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->flow.stopped)
+ if (tty->flow.stopped || !c)
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);
- spin_unlock_irqrestore(&to->port->lock, flags);
- /* And shovel */
- if (c)
- tty_flip_buffer_push(to->port);
- }
- return c;
+ return tty_insert_flip_string_and_push_buffer(to->port, buf, c);
}
/**