1 files changed, 9 insertions, 3 deletions

diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index a5cf253b2544..89ae23ac9ae6 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -217,11 +217,17 @@ void tty_wait_until_sent(struct tty_struct *tty, long timeout)
 #endif
         if (!timeout)
                 timeout = MAX_SCHEDULE_TIMEOUT;
+
         if (wait_event_interruptible_timeout(tty->write_wait,
-                        !tty_chars_in_buffer(tty), timeout) >= 0) {
-                if (tty->ops->wait_until_sent)
-                        tty->ops->wait_until_sent(tty, timeout);
+                        !tty_chars_in_buffer(tty), timeout) < 0) {
+                return;
         }
+
+        if (timeout == MAX_SCHEDULE_TIMEOUT)
+                timeout = 0;
+
+        if (tty->ops->wait_until_sent)
+                tty->ops->wait_until_sent(tty, timeout);
 }
 EXPORT_SYMBOL(tty_wait_until_sent);