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Subject: Re: ACS ACR122U not working: pn533_usb 1-1:1.0: NFC: Couldn't
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From: Johannes Berg <johannes@sipsolutions.net>
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
        Greg KH <gregkh@linuxfoundation.org>,
        Carlos Manuel Santos <cmmpsantos@gmail.com>,
        Samuel Ortiz <sameo@linux.intel.com>,
        Stephen Hemminger <stephen@networkplumber.org>
Cc: linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org
Date: Fri, 18 May 2018 11:03:28 +0200
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On Fri, 2018-05-18 at 10:56 +0200, Arend van Spriel wrote:
> 
> > +	buffer = kmalloc(sizeof(cmd), GFP_KERNEL);
> > +	if (!buffer)
> > +		return -ENOMEM;
> > +	memcpy(buffer, cmd, sizeof(cmd));

It should also use kmemdup() ;-)

johannes