Re: [alsa-devel] [PATCH 1/3 v4] ALSA: usb-audio: Move mutex define to more general location

Damien Zammit wrote:

Allow quirks to lock/unlock the usb audio register mutex by moving its definition to usbaudio.h

+++ b/sound/usb/usbaudio.h

+static DEFINE_MUTEX(register_mutex);

This does not work in a header file.

Regards, Clemens