Re: [PATCH 3/3] firmware: add mutex fw_lock_fallback for race condition

Luis Chamberlain
2019-08-23T15:43:06Z

On Fri, Aug 23, 2019 at 12:31:40PM +0200, Takashi Iwai wrote:
> So, if any, we'd need put a mutex around the fallback loader code.
> And, the mutex should be rather per device, not a global one.
>
> Or we may trick it by appending the second parallel caller into the
> same wait queue, but the code will be more complex, so I don't think
> worth for it.

For now I'm thinking of a new API with a devname prefix to the driver.
I'll have to test if that works, but not sure if I'll get to it today
before my vacation starts (today).

Luis