linux-kernel - Re: BUG: NULL pointer deref in tty port / uart

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Message-ID: <20110518155033.2773b323@bob.linux.org.uk>
Date:	Wed, 18 May 2011 15:50:33 +0100
From:	Alan Cox <alan@...ux.intel.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Kay Sievers <kay.sievers@...y.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Arnd Bergmann <arnd@...db.de>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: BUG: NULL pointer deref in tty port / uart

> I think it's the 
> 
> uart_update_termios in uart_dtr_rts (drivers/tty/serial/serial_core.c)
> 
> called path:
> 
> tty_port_block_til_ready
> 	tty_port_raise_dtr_rts
> 		uart_dtr_rts
> 			uart_update_termios

Ah that would explain why I can't find and dup it - it isn't found in
the current -next tree.


c7d7abff40c27f82fe78b1091ab3fad69b2546f9 (and thereafter)

Jiri Slaby fixed it in sorting out uart_startup

I guess these should now get tagged for -stable.

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