D34962.id105173.diff
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D34962.id105173.diff
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	Index: sys/kern/subr_bus.c
	===================================================================
	--- sys/kern/subr_bus.c
	+++ sys/kern/subr_bus.c
	@@ -1140,6 +1140,7 @@
	devclass_add_driver(devclass_t dc, driver_t driver, int pass, devclass_t dcp)
	{
	driverlink_t dl;
	+ devclass_t child_dc;
	const char *parentname;

	PDEBUG(("%s", DRIVERNAME(driver)));
	@@ -1171,7 +1172,9 @@
	parentname = driver->baseclasses[0]->name;
	else
	parentname = NULL;
	- *dcp = devclass_find_internal(driver->name, parentname, TRUE);
	+ child_dc = devclass_find_internal(driver->name, parentname, TRUE);
	+ if (dcp != NULL)
	+ *dcp = child_dc;

	dl->driver = driver;
	TAILQ_INSERT_TAIL(&dc->drivers, dl, link);