git.stricted.de - GitHub/MotorolaMobilityLLC/kernel-slsi.git/commit

author	Dave Young <hidave.darkstar@gmail.com>
	Sat, 14 Feb 2009 13:23:22 +0000 (21:23 +0800)
committer	Greg Kroah-Hartman <gregkh@suse.de>
	Tue, 24 Mar 2009 23:38:25 +0000 (16:38 -0700)
commit	f48f3febb2cbfd0f2ecee7690835ba745c1034a4
tree	1cb3803049cde40ff3dc528a2120f915e65f0367	tree \| snapshot (tar.gz zip)
parent	e5779a583ddb9916b37cfbb916dc53ec2eaf0b9b	commit \| diff

driver-core: do not register a driver with bus_type not registered

If the bus_type is not registerd, driver_register to that bus will cause oops.

I found this bug when test built-in usb serial drivers (ie. aircable driver)
with 'nousb' cmdline params.

In this patch:
1. set the bus->p=NULL when bus_register failed and unregisterd.
2. if bus->p is NULL, driver_register BUG_ON will be triggered.

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/base/bus.c		diff \| blob \| blame \| history
drivers/base/driver.c		diff \| blob \| blame \| history