From e3de62f05ca3e1d4875f2e1d005a71ee6ccf4807 Mon Sep 17 00:00:00 2001
From: Geert Stappers <stappers@stappers.it>
Date: Fri, 1 Jan 2021 22:22:19 +0100
Subject: [PATCH] Allow tty0tty_write_room() to return ENOBUFS

---
 module/tty0tty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/module/tty0tty.c b/module/tty0tty.c
index f40d1ff..2935a70 100644
--- a/module/tty0tty.c
+++ b/module/tty0tty.c
@@ -261,7 +261,7 @@ exit:
 static int tty0tty_write_room(struct tty_struct *tty)
 {
 	struct tty0tty_serial *tty0tty = tty->driver_data;
-	int room = -EINVAL;
+	int room = -ENOBUFS;
 
 	if (!tty0tty)
 		return -ENODEV;
--
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