Re: [PATCH 1/2] soundwire: bus: Prevent lockdep asserts when stream has multiple buses

[Vinod Koul <vkoul@kernel.org>]

On 15-06-23, 15:12, Richard Fitzgerald wrote:
> Give the bus_lock and msg_lock of each bus a different unique key
> so that it is possible to acquire the locks of multiple buses
> without lockdep asserting a possible deadlock.
> 
> Using mutex_init() to initialize a mutex gives all those mutexes
> the same lock class. Lockdep checking treats it as an error to
> attempt to take a mutex while already holding a mutex of the same
> class. This causes a lockdep assert when sdw_acquire_bus_lock()
> attempts to lock multiple buses, and when do_bank_switch() takes
> multiple msg_lock.

Applied both, thanks

-- 
~Vinod