On Tue, Jan 18, 2011 at 02:34:13PM +0200, Peter Ujfalusi wrote: > Or not.. soc-jack.c:snd_soc_jack_report also calls snd_soc_dapm_sync, while > keeping the codec->mutex locked... > Should machine drivers also take the mutex when they call snd_soc_dapm_sync? In general yes.