linux-kernel - Re: [PATCH 1/1] drivers/tty: check for null pointer

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Message-ID: <20170906134705.GA12073@kroah.com>
Date:   Wed, 6 Sep 2017 15:47:05 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Zhenhua <lizhenhuajiyang@....com>
Cc:     jslaby@...e.com, mingo@...nel.org,
        andriy.shevchenko@...ux.intel.com, mail@...iej.szmigiero.name,
        mgorman@...e.de, safinaskar@...l.ru, mhocko@...e.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] drivers/tty: check for null pointer

On Wed, Sep 06, 2017 at 09:38:11PM +0800, Zhenhua wrote:
> The parameter "handler" is not checked, which may cause system
> crash on some broken devices.

Then those broken drivers need to be fixed.

What specific in-kernel drivers have this problem?

thanks,

greg k-h