linux-kernel - Re: usb/serial/io_ti.c: inconsequent NULL checking

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Date:	Fri, 22 Feb 2008 10:10:16 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Ray Lee" <ray-lk@...rabbit.org>
Cc:	"Greg KH" <gregkh@...e.de>, "Adrian Bunk" <bunk@...nel.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: usb/serial/io_ti.c: inconsequent NULL checking

> Either the test of port->tty here is unneeded:
> 
>  if (port->tty)
>                port->tty->low_latency = low_latency;
> 
> ...or the lack of test of port->tty here is a mistake:
> 
> 	 edge_set_termios (port, port->tty->termios);

Interesting - so coverity doesn't understand the BKL. It's producing the
right answer, for the right reason but the assumption it makes isn't 100%
safe.

The check can go.

Alan

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