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-rw-r--r--drivers/tty/n_tty.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index d4b14c30794e..7efabc4673b6 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -262,7 +262,7 @@ static void n_tty_check_throttle(struct tty_struct *tty)
while (1) {
int throttled;
tty_set_flow_change(tty, TTY_THROTTLE_SAFE);
- if (receive_room(tty) >= TTY_THRESHOLD_THROTTLE)
+ if (N_TTY_BUF_SIZE - read_cnt(ldata) >= TTY_THRESHOLD_THROTTLE)
break;
throttled = tty_throttle_safe(tty);
if (!throttled)