diff options
Diffstat (limited to 'sys/kern/subr_bus.c')
| -rw-r--r-- | sys/kern/subr_bus.c | 38 |
1 files changed, 14 insertions, 24 deletions
diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c index e4d1f9b..0c97aa3 100644 --- a/sys/kern/subr_bus.c +++ b/sys/kern/subr_bus.c @@ -1049,9 +1049,10 @@ devclass_driver_added(devclass_t dc, driver_t *driver) * @param driver the driver to register */ static int -devclass_add_driver(devclass_t dc, driver_t *driver, int pass) +devclass_add_driver(devclass_t dc, driver_t *driver, int pass, devclass_t *dcp) { driverlink_t dl; + const char *parentname; PDEBUG(("%s", DRIVERNAME(driver))); @@ -1072,9 +1073,17 @@ devclass_add_driver(devclass_t dc, driver_t *driver, int pass) kobj_class_compile((kobj_class_t) driver); /* - * Make sure the devclass which the driver is implementing exists. + * If the driver has any base classes, make the + * devclass inherit from the devclass of the driver's + * first base class. This will allow the system to + * search for drivers in both devclasses for children + * of a device using this driver. */ - devclass_find_internal(driver->name, NULL, TRUE); + if (driver->baseclasses) + parentname = driver->baseclasses[0]->name; + else + parentname = NULL; + *dcp = devclass_find_internal(driver->name, parentname, TRUE); dl->driver = driver; TAILQ_INSERT_TAIL(&dc->drivers, dl, link); @@ -4157,27 +4166,8 @@ driver_module_handler(module_t mod, int what, void *arg) driver = dmd->dmd_driver; PDEBUG(("Loading module: driver %s on bus %s (pass %d)", DRIVERNAME(driver), dmd->dmd_busname, pass)); - error = devclass_add_driver(bus_devclass, driver, pass); - if (error) - break; - - /* - * If the driver has any base classes, make the - * devclass inherit from the devclass of the driver's - * first base class. This will allow the system to - * search for drivers in both devclasses for children - * of a device using this driver. - */ - if (driver->baseclasses) { - const char *parentname; - parentname = driver->baseclasses[0]->name; - *dmd->dmd_devclass = - devclass_find_internal(driver->name, - parentname, TRUE); - } else { - *dmd->dmd_devclass = - devclass_find_internal(driver->name, NULL, TRUE); - } + error = devclass_add_driver(bus_devclass, driver, pass, + dmd->dmd_devclass); break; case MOD_UNLOAD: |
