linux-kernel - Re: [PATCH v4] HID: ft260: improve error handling of ft260_hid_feature_report

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Message-ID: <nycvar.YFH.7.76.2105131308260.28378@cbobk.fhfr.pm>
Date:   Thu, 13 May 2021 13:09:04 +0200 (CEST)
From:   Jiri Kosina <jikos@...nel.org>
To:     Michael Zaidman <michael.zaidman@...il.com>
cc:     trix@...hat.com, benjamin.tissoires@...hat.com,
        linux-i2c@...r.kernel.org, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] HID: ft260: improve error handling of
 ft260_hid_feature_report_get()

On Tue, 11 May 2021, Michael Zaidman wrote:

> Fixes: 6a82582d9fa4 ("HID: ft260: add usb hid to i2c host bridge driver")
> 
> The ft260_hid_feature_report_get() checks if the return size matches
> the requested size. But the function can also fail with at least -ENOMEM.
> Add the < 0 checks.
> 
> In ft260_hid_feature_report_get(), do not do the memcpy to the caller's
> buffer if there is an error.
> 
> ---
> v4   Fixed commit message
> ---
> v3   Simplify and optimize the changes
> ---
> v2:  add unlikely()'s for error conditions
> ---
> 
> Signed-off-by: Tom Rix <trix@...hat.com>
> Signed-off-by: Michael Zaidman <michael.zaidman@...il.com>

Who should be the author of the git commit?

Thanks,

-- 
Jiri Kosina
SUSE Labs