Re: [ 166/167] [PATCH] staging: r8712u: Fix regression caused bycommit 8c213fa

[Ben Hutchings]

On Wed, 2012-05-09 at 12:49 -0700, Herton Ronaldo Krzesinski wrote:
> On Wed, May 09, 2012 at 06:53:15AM +0100, Ben Hutchings wrote:
> > 3.2-stable review patch.  If anyone has any objections, please let me know.
> > 
> > ------------------
> > 
> > From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
> > 
> > commit 2080913e017ab9f88379d93fd09546ad95faf87b upstream.
[...]
> > --- a/drivers/staging/rtl8712/usb_intf.c
> > +++ b/drivers/staging/rtl8712/usb_intf.c
> > @@ -30,6 +30,7 @@
> >  
> >  #include <linux/usb.h>
> >  #include <linux/module.h>
> > +#include <linux/firmware.h>
> >  
> >  #include "osdep_service.h"
> >  #include "drv_types.h"
> > @@ -620,6 +621,10 @@ static void r871xu_dev_remove(struct usb_interface *pusb_intf)
> >  	struct _adapter *padapter = netdev_priv(pnetdev);
> >  	struct usb_device *udev = interface_to_usbdev(pusb_intf);
> >  
> > +	if (padapter->fw_found)
> > +		release_firmware(padapter->fw);
> > +	/* never exit with a firmware callback pending */
> > +	wait_for_completion(&padapter->rtl8712_fw_ready);
> 
> We also need to apply commit ee6aeff71e2f16b9fe95ce908d098c169e0f4004
> after this, due to the possible invalid padapter dereference.
[...]

That 'fix' makes no sense since netdev_priv() never returns NULL.

Larry, you should remove the test for pAdapter completely, or if pnetdev
can somehow be NULL then test *that*.

Ben.

-- 
Ben Hutchings
Life is what happens to you while you're busy making other plans.
                                                               - John Lennon

Attachment: signature.asc
Description: This is a digitally signed message part