This is a note to let you know that I've just added the patch titled
tty: Allow uart_register/unregister/register
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tty-allow-uart_register-unregister-register.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 1e66cded334e6cea596c72f6f650eec351b1e959 Mon Sep 17 00:00:00 2001
From: Alan Cox <[email protected]>
Date: Mon, 14 May 2012 14:51:22 +0100
Subject: tty: Allow uart_register/unregister/register
From: Alan Cox <[email protected]>
commit 1e66cded334e6cea596c72f6f650eec351b1e959 upstream.
This is legitimate but because we don't clear the drv->state pointer in the
unregister code causes a bogus BUG().
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42880
Signed-off-by: Alan Cox <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/tty/serial/serial_core.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2325,6 +2325,7 @@ void uart_unregister_driver(struct uart_
tty_unregister_driver(p);
put_tty_driver(p);
kfree(drv->state);
+ drv->state = NULL;
drv->tty_driver = NULL;
}
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/tty-allow-uart_register-unregister-register.patch
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