linux-kernel - Re: Re: Re: [PATCH v3] serial: pch_uart: potential dereference of null pointer

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Message-ID: <Ybtl5JUXKztUYqYz@kroah.com>
Date:   Thu, 16 Dec 2021 17:14:28 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jiasheng Jiang <jiasheng@...as.ac.cn>
Cc:     jirislaby@...nel.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: Re: Re: [PATCH v3] serial: pch_uart: potential dereference of
 null pointer

On Thu, Dec 16, 2021 at 11:41:13PM +0800, Jiasheng Jiang wrote:
> On Thu, Dec 16, 2021 at 11:24:36PM +0800, Greg KH wrote:
> > Did you run the kernel before your change and then after your change to
> > ensure that the failure you saw before your change is now properly
> > fixed?
> >
> > How did you test this?
> 
> Thank you for your answer. But I haven't run it yet.
> And in fact I don't know how to trigger the alloc failure.

Then perhaps this change is not needed?

thanks,

greg k-h