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Change calling of chained event handler from always after

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the attach/detach to
1) MOD_LOAD before attach
2) MOD_UNLOAD after detach

The driver specific event handler can now be used to function as
driver specific init/deinit function (compare to device specific
init/deinit functions: attach & detach).
This commit is contained in:
Nick Hibma 1999-08-16 21:44:14 +00:00
parent d6636ad7b3
commit 394b7d0877
1 changed files with 7 additions and 3 deletions
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10
sys/kern/subr_bus.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* $Id: subr_bus.c,v 1.37 1999/08/14 13:20:04 n_hibma Exp $ * $Id: subr_bus.c,v 1.38 1999/08/14 13:32:25 n_hibma Exp $
*/ */
#include <sys/param.h> #include <sys/param.h>
@ -2142,6 +2142,9 @@ driver_module_handler(module_t mod, int what, void *arg)
switch (what) { switch (what) {
case MOD_LOAD: case MOD_LOAD:
if (dmd->dmd_chainevh)
error = dmd->dmd_chainevh(mod,what,dmd->dmd_chainarg);
for (i = 0; !error && i < dmd->dmd_ndrivers; i++) { for (i = 0; !error && i < dmd->dmd_ndrivers; i++) {
PDEBUG(("Loading module: driver %s on bus %s", PDEBUG(("Loading module: driver %s on bus %s",
DRIVERNAME(dmd->dmd_drivers[i]), DRIVERNAME(dmd->dmd_drivers[i]),
@ -2169,11 +2172,12 @@ driver_module_handler(module_t mod, int what, void *arg)
error = devclass_delete_driver(bus_devclass, error = devclass_delete_driver(bus_devclass,
dmd->dmd_drivers[i]); dmd->dmd_drivers[i]);
} }
if (!error && dmd->dmd_chainevh)
error = dmd->dmd_chainevh(mod,what,dmd->dmd_chainarg);
break; break;
} }
if (!error && dmd->dmd_chainevh)
error = dmd->dmd_chainevh(mod, what, dmd->dmd_chainarg);
return (error); return (error);
} }