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| author | Dave Young <hidave.darkstar@gmail.com> | 2009-02-14 13:23:22 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-24 23:38:25 (GMT) |
| commit | f48f3febb2cbfd0f2ecee7690835ba745c1034a4 (patch) | |
| tree | 1cb3803049cde40ff3dc528a2120f915e65f0367 /kernel/spinlock.c | |
| parent | e5779a583ddb9916b37cfbb916dc53ec2eaf0b9b (diff) | |
| download | linux-f48f3febb2cbfd0f2ecee7690835ba745c1034a4.tar.xz | |
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>
Diffstat (limited to 'kernel/spinlock.c')
0 files changed, 0 insertions, 0 deletions