RE: [PATCH 2/2] hso: fix deadlock when receiving bursts of data

From: David Laight
Date: Thu Jul 10 2014 - 10:39:20 EST

From: Olivier Sobrie
> The function put_rxbuf_data() is called from the urb completion handler.
> It puts the data of the urb transfer in the tty buffer with
> tty_insert_flip_string_flags() and schedules a work queue in order to
> push the data to the ldisc.
> Problem is that we are in a urb completion handler so we can't wait
> until there is room in the tty buffer.

Surely you can just keep the urb?
Resubmit it later when all the data has been transferred.


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