And if not, complain loudly. None in-kernel module should trigger
that, but let us find out for sure. On the other hand, all the
out-of-tree modules will hit that. Give them some time (maybe one
release) to catch up.
Signed-off-by: Jiri Slaby <jsl...@suse.cz>
---
drivers/tty/tty_io.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 28c3e86..41e42f1 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1415,6 +1415,10 @@ struct tty_struct *tty_init_dev(struct tty_driver
*driver, int idx)
if (!tty->port)
tty->port = driver->ports[idx];
+ WARN_RATELIMIT(!tty->port,
+ "%s: %s driver does not set tty->port. This will crash
the kernel later. Fix the driver!\n",
+ __func__, tty->driver->name);
+
/*
* Structures all installed ... call the ldisc open routines.
* If we fail here just call release_tty to clean up. No need
--
1.7.11.5
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