kernel crash while loading snd_hda - _sx_xlock_hard: recursed on non-recursive sx

Hi,

I am getting a kernel crash every time I try to load the snd_hda
module - backtrace in the attachment - this is on a current as of
August 6th,  ~17pm. Making the newbus lock recursable fixed the issue
for me (patch attached) but I am not familiar with the newbus
subsystem & locking so I am not sure that this is the appropriate
solution.

cheers,
Shteryana