SUBSTREAM_BUSY    908 sound/core/pcm.c 			if (SUBSTREAM_BUSY(substream))
SUBSTREAM_BUSY    926 sound/core/pcm.c 		if (! SUBSTREAM_BUSY(substream))
SUBSTREAM_BUSY    934 sound/core/pcm.c 		if (!SUBSTREAM_BUSY(substream) &&
SUBSTREAM_BUSY    601 sound/usb/usx2y/usx2yhwdeppcm.c 		    SUBSTREAM_BUSY(subs->pcm_substream))