D48031.1789644334.diff
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	diff --git a/sys/dev/sound/pcm/feeder_chain.c b/sys/dev/sound/pcm/feeder_chain.c
	--- a/sys/dev/sound/pcm/feeder_chain.c
	+++ b/sys/dev/sound/pcm/feeder_chain.c
	@@ -569,6 +569,9 @@
	m->offset[x] = -1;
	}

	+#define FEEDER_FORMAT_SUPPORTED(fmt) \
	+ ((fmt) & (AFMT_8BIT \| AFMT_16BIT \| AFMT_24BIT \| AFMT_32BIT))
	+
	int
	feeder_chain(struct pcm_channel *c)
	{
	@@ -697,6 +700,15 @@
	cdesc.target.rate = c->speed;
	}

	+ /* Bail out early if we do not support either of those formats. */
	+ if (!FEEDER_FORMAT_SUPPORTED(cdesc.origin.afmt) \|\|
	+ !FEEDER_FORMAT_SUPPORTED(cdesc.target.afmt)) {
	+ device_printf(c->dev,
	+ "%s(): unsupported formats: in=0x%08x, out=0x%08x\n",
	+ __func__, cdesc.origin.afmt, cdesc.target.afmt);
	+ return (ENOTSUP);
	+ }
	+
	d = c->parentsnddev;

	/*