linux-kernel - Re: [PATCH v2] HID: roccat: add bounds checking in kone_sysfs_write

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Message-ID: <20200825072903.GQ1793@kadam>
Date:   Tue, 25 Aug 2020 10:29:03 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Walter Harms <wharms@....de>
Cc:     Stefan Achatz <erazor_de@...rs.sourceforge.net>,
        Jiri Kosina <jikos@...nel.org>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH v2] HID: roccat: add bounds checking in
 kone_sysfs_write_settings()

On Mon, Aug 24, 2020 at 03:35:16PM +0000, Walter Harms wrote:
> hello Dan, 
> 
> i notice that you can shorten the line to:
> (line above checks for count==sizeof(struct kone_settings))
> 
> difference = memcmp(settings, &kone->settings, count);
> 
> nothing special just to shorten the line and make use of count.
> 
> and just to save one indent level and because its  readabel nicely:
>     if ( ! difference ) 
>           goto unlock;
> 
> hope that helps

Yeah.  I wrote that version and I wanted to send it, but then I decided
not to change the style too much.  I definitely agree with you, but I
figured I would keep the patch less intrusive.

regards,
dan carpenter