linux-kernel - Re: [PATCH v1] drivers/usb/core/driver: check return value of usb_set

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Date:   Fri, 9 Sep 2022 12:21:44 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Li Zhong <floridsleeves@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        heghedus.razvan@...il.com, evgreen@...omium.org,
        yuanjilin@...rlc.com, stern@...land.harvard.edu,
        jj251510319013@...il.com
Subject: Re: [PATCH v1] drivers/usb/core/driver: check return value of
 usb_set_interface()

On Thu, Sep 08, 2022 at 09:42:14PM -0700, Li Zhong wrote:
> Check return value of usb_set_interface() and report error if it fails.
> Otherwise usb_set_interface() may fail without any warnings. 
> 
> This flaw was found using an experimental static analysis tool we are
> developing. Report warnings when the function usb_set_interface() fails
> can increase the dianosability.

How did you test this change?