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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Okash Khawaja <okash.khawaja@gmail.com>
Cc: Jiri Slaby <jslaby@suse.com>,
	Samuel Thibault <samuel.thibault@ens-lyon.org>,
	Alan Cox <gnomes@lxorguk.ukuu.org.uk>,
	linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
	Kirk Reiser <kirk@reisers.ca>,
	speakup@linux-speakup.org, Chris Brannon <chris@the-brannons.com>
Subject: Re: [patch 2/3] staging: speakup: use tty_kopen instead of tty_open_by_driver
Date: Sun, 9 Jul 2017 13:50:55 +0200	[thread overview]
Message-ID: <20170709115055.GA14769@kroah.com> (raw)
In-Reply-To: <20170709114429.230337437@gmail.com>

On Sun, Jul 09, 2017 at 12:41:55PM +0100, Okash Khawaja wrote:
> This patch replaces call to tty_open_by_driver with a tty_kopen.
> 
> Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
> 
> ---
>  drivers/staging/speakup/spk_ttyio.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- a/drivers/staging/speakup/spk_ttyio.c
> +++ b/drivers/staging/speakup/spk_ttyio.c
> @@ -164,7 +164,7 @@ static int spk_ttyio_initialise_ldisc(st
>  	if (ret)
>  		return ret;
>  
> -	tty = tty_open_by_driver(dev, NULL, NULL);
> +	tty = tty_kopen(dev);
>  	if (IS_ERR(tty))

Hm, the "no tty layer" return value for this will be NULL.  I doubt
that's really a big deal, but perhaps just have that return
PTR_ERR(-ENODEV) or something?

thanks,

greg k-h

  reply	other threads:[~2017-07-09 11:51 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-07 20:28 tty contention resulting from tty_open_by_device export Okash Khawaja
2017-07-08  8:38 ` Greg Kroah-Hartman
2017-07-08  9:01   ` Okash Khawaja
2017-07-09 11:41   ` [patch 0/3] " Okash Khawaja
2017-07-09 11:41     ` [patch 1/3] tty: resolve tty contention between kernel and user space Okash Khawaja
2017-07-09 11:51       ` Greg Kroah-Hartman
2017-07-09 15:04       ` Andy Shevchenko
2017-07-09 19:08         ` Okash Khawaja
2017-07-10  8:31         ` Okash Khawaja
2017-07-10 15:21           ` Andy Shevchenko
2017-07-10 16:12             ` Okash Khawaja
2017-07-09 11:41     ` [patch 2/3] staging: speakup: use tty_kopen instead of tty_open_by_driver Okash Khawaja
2017-07-09 11:50       ` Greg Kroah-Hartman [this message]
2017-07-09 12:28         ` Okash Khawaja
2017-07-09 11:41     ` [patch 3/3] tty: undo export " Okash Khawaja
2017-07-09 11:57     ` [patch 0/3] Re: tty contention resulting from tty_open_by_device export Greg Kroah-Hartman
2017-07-09 12:32     ` [patch 4/3] tty: make tty_kopen return ENODEV in case of no TTY Okash Khawaja
2017-07-10 11:52     ` [patch 0/3] Re: tty contention resulting from tty_open_by_device export Alan Cox
2017-07-10 12:33       ` Okash Khawaja
2017-07-10 16:22         ` Okash Khawaja
2017-07-12 18:20         ` Alan Cox
2017-07-13 11:29           ` Okash Khawaja
2017-07-17 12:31             ` Greg Kroah-Hartman
2017-07-17 13:23               ` Okash Khawaja
2017-07-17 22:04                 ` Alan Cox
2017-07-18 11:29                   ` Okash Khawaja
2017-07-18 12:26                     ` Dan Carpenter
2017-07-18 19:22                       ` Okash Khawaja
2017-07-18 13:49                     ` Alan Cox
2017-07-20  7:22                       ` [patch v3 0/3] tty contention resulting from tty_open_by_driver export Okash Khawaja
2017-07-20  7:22                         ` [patch v3 1/3] tty: resolve tty contention between kernel and user space Okash Khawaja
2017-07-20  7:22                         ` [patch v3 2/3] staging: speakup: use tty_kopen and tty_kclose Okash Khawaja
2017-07-20  7:22                         ` [patch v3 3/3] tty: undo export of tty_open_by_driver Okash Khawaja
2017-07-17 21:04               ` [patch v2 0/3] tty contention resulting from tty_open_by_driver export Okash Khawaja
2017-07-17 21:04                 ` [patch v2 1/3] tty: resolve tty contention between kernel and user space Okash Khawaja
2017-07-17 21:04                 ` [patch v2 2/3] staging: speakup: use tty_kopen instead of tty_open_by_driver Okash Khawaja
2017-07-17 21:04                 ` [patch v2 3/3] tty: undo export " Okash Khawaja

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