linux-kernel - Re: [patch 1/2] tty: pty - Move TIOCPKT handling into pty.c

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Date:	Thu, 27 Sep 2012 19:33:27 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	Cyrill Gorcunov <gorcunov@...nvz.org>
CC:	linux-kernel@...r.kernel.org, alan@...rguk.ukuu.org.uk,
	hpa@...or.com, gregkh@...uxfoundation.org, xemul@...allels.com
Subject: Re: [patch 1/2] tty: pty - Move TIOCPKT handling into pty.c

On 09/27/2012 06:59 PM, Cyrill Gorcunov wrote:
> --- tty.git.orig/drivers/tty/pty.c
> +++ tty.git/drivers/tty/pty.c
> @@ -174,6 +174,31 @@ static int pty_set_lock(struct tty_struc
>  	return 0;
>  }
>  
> +/* Set the packet mode on a pty */
> +static int pty_set_pktmode(struct tty_struct *tty, int __user *arg)
> +{
> +	unsigned long flags;
> +	int pktmode;
> +
> +	if (tty->driver->subtype != PTY_TYPE_MASTER)
> +		return -ENOTTY;

Hi!

This check is not needed as the ioctls are master-only.

-- 
js
suse labs
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