Re: [alsa-devel] [PATCH v3] ASoC: AMD: Fix race condition between register access

On Wed, Oct 31, 2018 at 09:24:10PM +0000, Agrawal, Akshu wrote:

+/* Lock to protect access to registers */ +static DEFINE_SPINLOCK(lock);

Why is this a global variable and not a part of the driver structure? Is there some interaction between multiple instances?