D47221.diff
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	diff --git a/sys/dev/iicbus/controller/vybrid/vf_i2c.c b/sys/dev/iicbus/controller/vybrid/vf_i2c.c
	--- a/sys/dev/iicbus/controller/vybrid/vf_i2c.c
	+++ b/sys/dev/iicbus/controller/vybrid/vf_i2c.c
	@@ -207,13 +207,6 @@
	sc = device_get_softc(dev);
	vf_i2c_dbg(sc, "i2c detach\n");

	- mtx_lock(&sc->mutex);
	-
	- if (sc->freq == 0) {
	- vf_i2c_dbg(sc, "Writing 0x00 to clock divider register\n");
	- WRITE1(sc, I2C_IBFD, 0x00);
	- }
	-
	error = bus_generic_detach(dev);
	if (error != 0) {
	device_printf(dev, "cannot detach child devices.\n");
	@@ -226,6 +219,13 @@
	return (error);
	}

	+ mtx_lock(&sc->mutex);
	+
	+ if (sc->freq == 0) {
	+ vf_i2c_dbg(sc, "Writing 0x00 to clock divider register\n");
	+ WRITE1(sc, I2C_IBFD, 0x00);
	+ }
	+
	bus_release_resources(dev, i2c_spec, sc->res);

	mtx_unlock(&sc->mutex);