linux-kernel - Re: [PATCH] tty_io: Fix a missing-check bug in drivers/tty/tty

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Date:   Wed, 22 May 2019 19:18:28 +0800
From:   Gen Zhang <blackgod016574@...il.com>
To:     Jiri Slaby <jslaby@...e.cz>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tty_io: Fix a missing-check bug in drivers/tty/tty_io.c

On Wed, May 22, 2019 at 10:15:56AM +0200, Jiri Slaby wrote:
> Look at the top of alloc_tty_struct: there is tty_ldisc_init. If
> tty_get_device fails here, you have to call tty_ldisc_deinit. Better,
> you should add a failure-handling tail to this function and "goto" there.
Thanks for your explaination, Jiri.
I will work on it.
Thanks
Gen