Re: debugging oops after disconnecting Nexio USB touchscreen

[Andreas Mohr]

Hi,

> Furthermore, the patch shows that the second-to-last argument to 
> usb_fill_bulk_urb() -- the completion function -- is NULL.  That is 
> strictly illegal and it should have caused an oops as soon as the URB 
> was used.

Then there's definitely a WARN_ON or so missing in
static inline void usb_fill_bulk_urb()

And highly likely more checks in those areas that are causing my (and
other people's) ftdi_sio tests and USB audio (MIPS mmap) to fail.
Followup soon.

Andreas Mohr
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