From d7f9e068bab08c8dbb7ddbc4129fd26188555fd7 Mon Sep 17 00:00:00 2001
From: Geert Stappers <stappers@stappers.it>
Date: Fri, 1 Jan 2021 22:51:16 +0100
Subject: [PATCH] Less generic error code for write()

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

diff --git a/module/tty0tty.c b/module/tty0tty.c
index f40d1ff..f79132e 100644
--- a/module/tty0tty.c
+++ b/module/tty0tty.c
@@ -214,7 +214,7 @@ static int tty0tty_write(struct tty_struct *tty, const unsigned char *buffer,
 			 int count)
 {
 	struct tty0tty_serial *tty0tty = tty->driver_data;
-	int retval = -EINVAL;
+	int retval = -ENOTCONN;
 	struct tty_struct *ttyx = NULL;
 
 	if (!tty0tty)
--
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