Hi,

On 06/19/2013 11:16 PM, Pete Batard wrote:
> NB: The original issue we're talking about here is #76:
> https://github.com/libusbx/libusbx/issues/76
>
> On 2013.06.19 11:51, Hans de Goede wrote:
>> And I noticed that this patch seems wrong, if the cancel fails it does not
>> wait but it still frees the transfer, which at that point is still referenced
>> by the underlying urb, which has potentially not completed yet.
>
> No good indeed.
>
>> I see 2 options to move forward with this:
>> 1) Keep the patch, but if the cancel fails do not free the transfer, this is 
>> not
>> really helpful, since the app could still kill the buffer the transfer 
>> references
>> after we return.
>>
>> 2) Revert the patch, and re-open https://github.com/libusbx/libusbx/issues/76
>> Asking the user for source for the app in question, and hunt down the real 
>> bug
>> there.
>>
>> May vote goes to 2, input much appreciated (iow please give me your 2 cents) 
>> ?
>
> I think at the very least, if we go with 2, we want to check the return
> code from libusb_cancel_transfer(transfer) and produce a warning if it's
> not SUCCESS. This should at least give some insight to app developers as
> to what is going on.

Done (more or less, see git).

Regards,

Hans

------------------------------------------------------------------------------
This SF.net email is sponsored by Windows:

Build for Windows Store.

http://p.sf.net/sfu/windows-dev2dev
_______________________________________________
libusbx-devel mailing list
libusbx-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/libusbx-devel

Reply via email to