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Re: [Qemu-devel] [PATCH 9/9] hcd-musb: fix dereference null return value


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 9/9] hcd-musb: fix dereference null return value
Date: Mon, 17 Nov 2014 14:39:31 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0

 17/11/2014 14:36, Gerd Hoffmann wrote:
>>>> @@ -625,8 +626,11 @@ static void musb_packet(MUSBState *s, MUSBEndPoint 
>>>> *ep,
>>>>      /* A wild guess on the FADDR semantics... */
>>>>      dev = usb_find_device(&s->port, ep->faddr[idx]);
>>>>      uep = usb_ep_get(dev, pid, ep->type[idx] & 0xf);
>>>> -    usb_packet_setup(&ep->packey[dir].p, pid, uep, 0,
>>>> -                     (dev->addr << 16) | (uep->nr << 8) | pid, false, 
>>>> true);
>>>> +    id = pid;
>>>> +    if (uep) {
>>>> +        id |= (dev->addr << 16) | (uep->nr << 8);
>>>> +    }
>>>> +    usb_packet_setup(&ep->packey[dir].p, pid, uep, 0, id, false, true);
>>>>      usb_packet_addbuf(&ep->packey[dir].p, ep->buf[idx], len);
>>>>      ep->packey[dir].ep = ep;
>>>>      ep->packey[dir].dir = dir;
>>>
>>> This is a good approach, id is just a identifying. Thanks,
>>>
>>
>> Let me split the patch from this series as a separate patch
>> and add Paolo's signed-off-by.
>>
>> Asking for Gerd's reviewing, Thanks.
> 
> Looks good to me.

Thanks, then I'll pick it up.

Paolo



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