Ed Maste da03ac41c9 sound: test PCM_REGISTERED before PCM_DETACHING
PCM_REGISTERED(d) tests that d is not NULL, so perform that check first
as we may have cases where devclass_get_softc has a null entry.

PR:		262671
Reviewed by:	hselasky
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D34648
2022-03-23 20:10:00 -04:00
..