Re: [Suggestion] drivers/usb/renesas_usbhs: pkt is still in use, after it was already free.

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On Fri, Dec 07, 2012 at 08:42:25PM +0800, Chen Gang wrote:
> Hello Greg Kroah-Hartman:
> 
> in drivers/usb/renesas_usbhs/mod_host.c, in function usbhsh_queue_done:
> 
>     get ureq from pkt, by using the macro usbhsh_pkt_to_ureq (at line 637)
>         pkt is the sub-object of ureq (line 73..76, line 157..158)
> 
>     free ureq, by calling function usbhsh_ureq_free (at line 655)
>         use kfree to free ureq in function usbhsh_ureq_free (line 184..191)
>         originally ureq is call kzalloc in function usbhsh_ureq_alloc (line 171..179)
>         so pkt also free, too.
> 
>     still use pkt, by calling function usbhsh_endpoint_sequence_save (at line 657)
>         use pkt->zero in funcion usbhsh_endpoint_sequence_save (at line 243)
> 
> 
>   I find it through code review, please help to check this suggestion whether valid.

I don't know, run the code to see if this is correct or not.

greg k-h
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