linux-kernel - Re: [PATCH v2] char: lp: Fix NULL pointer dereference of cad

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Message-ID: <2026012055-excretory-afternoon-d123@gregkh>
Date: Tue, 20 Jan 2026 15:07:45 +0100
From: Greg KH <gregkh@...uxfoundation.org>
To: Li Nan <linan666@...weicloud.com>
Cc: arnd@...db.de, linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk,
	wanghai38@...wei.com, "yi.zhang@...wei.com" <yi.zhang@...wei.com>,
	"yangerkun@...wei.com" <yangerkun@...wei.com>
Subject: Re: [PATCH v2] char: lp: Fix NULL pointer dereference of cad

On Tue, Jan 20, 2026 at 09:21:11PM +0800, Li Nan wrote:
> Do you think we need cleanups/fixes in this driver, or should we wait
> for real-world users to encounter issues and discuss them separately?

As no one who actually has this hardware has reported anything in the
decades that the code has been like this, I would recommend just leaving
it as-is.

thanks,

greg k-h