This exports tty_open_by_driver so that it can be called from other places
inside the kernel. The checks for null file pointer are based on Alan Cox's
patch here:
http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1215095.html.
Description below is quoted from it:
"[RFC] tty_port: all
On Mon, May 15, 2017 at 06:45:32PM +0100, Okash Khawaja wrote:
> This exports tty_open_by_driver so that it can be called from other places
> inside the kernel. The checks for null file pointer are based on Alan Cox's
> patch here:
> http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg12
On Sat, May 20, 2017 at 11:09:02PM -0700, Christoph Hellwig wrote:
> On Mon, May 15, 2017 at 06:45:32PM +0100, Okash Khawaja wrote:
> > This exports tty_open_by_driver so that it can be called from other places
> > inside the kernel. The checks for null file pointer are based on Alan Cox's
> > pa
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