Re: PROBLEM: kernel oops with g_serial USB gadget on 2.6.30

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On Wednesday 24 June 2009, Alan Cox wrote:
> Looks to me like the gs_write_room function takes a lock already held
> when the driver calls tty_flip_buffer_push() - which will and can call
> back into the driver (eg for echo processing)

That doesn't seem to explain whatever null pointer was being
traversed though.

A lock-already-held problem would self-deadlock, not oops.

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