x86-hpet: fix booting NULL pointer panic introduced by c/s 21398.
authorKeir Fraser <keir.fraser@citrix.com>
Tue, 18 May 2010 12:30:45 +0000 (13:30 +0100)
committerKeir Fraser <keir.fraser@citrix.com>
Tue, 18 May 2010 12:30:45 +0000 (13:30 +0100)
commitca3ab005c14186c4b319a0995f25a0cab1092835
treea27c2f088cae0278c1f1d4dc07b474f8fae97158
parentafb3100a1d8da9516fc946d9d061ba7441d1cf51
x86-hpet: fix booting NULL pointer panic introduced by c/s 21398.

(XEN) Xen call trace:
(XEN)    [<ffff82c48011fb27>] check_lock+0x19/0x49
(XEN)    [<ffff82c48011ff2a>] _spin_lock_irq+0x28/0x4a
(XEN)    [<ffff82c48018fd6d>] hpet_broadcast_exit+0x92/0x1f0
(XEN)    [<ffff82c4801920b2>] acpi_processor_idle+0x62c/0x6e6
(XEN)    [<ffff82c48014e1a1>] idle_loop+0x62/0x73

Signed-off-by: Wei Gang <gang.wei@intel.com>
xen/arch/x86/hpet.c