linux-kernel - RE: [PATCH] HID: hyperv: Cocci spatch "memdup.spatch"

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Date:	Mon, 3 Jun 2013 14:14:09 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Jiri Kosina <jkosina@...e.cz>, Thomas Meyer <thomas@...3r.de>
CC:	Haiyang Zhang <haiyangz@...rosoft.com>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] HID: hyperv: Cocci spatch "memdup.spatch"



> -----Original Message-----
> From: Jiri Kosina [mailto:jkosina@...e.cz]
> Sent: Monday, June 03, 2013 7:35 AM
> To: Thomas Meyer
> Cc: KY Srinivasan; Haiyang Zhang; devel@...uxdriverproject.org; linux-
> input@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH] HID: hyperv: Cocci spatch "memdup.spatch"
> 
> On Sat, 1 Jun 2013, Thomas Meyer wrote:
> 
> > Signed-off-by: Thomas Meyer <thomas@...3r.de>
> > ---
> >
> > diff -u -p a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c
> > --- a/drivers/hid/hid-hyperv.c
> > +++ b/drivers/hid/hid-hyperv.c
> > @@ -199,13 +199,11 @@ static void mousevsc_on_receive_device_i
> >  	if (desc->bLength == 0)
> >  		goto cleanup;
> >
> > -	input_device->hid_desc = kzalloc(desc->bLength, GFP_ATOMIC);
> > +	input_device->hid_desc = kmemdup(desc, desc->bLength,
> GFP_ATOMIC);
> >
> >  	if (!input_device->hid_desc)
> >  		goto cleanup;
> >
> > -	memcpy(input_device->hid_desc, desc, desc->bLength);
> > -
> >  	input_device->report_desc_size = desc->desc[0].wDescriptorLength;
> >  	if (input_device->report_desc_size == 0) {
> >  		input_device->dev_info_status = -EINVAL;
> >
> 
> I guess you are going to get some pushback from some maintainers due to
> non-descriptive subject and missing changelog :)
> 
> I have fixed this for the hyperv patch and applied it, thanks.

Thanks Jiri!

K. Y
> 
> --
> Jiri Kosina
> SUSE Labs
> 


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