Commit 39c04b55 authored Dec 16, 2008 by Jeremy Fitzhardinge Committed by Ingo Molnar Dec 16, 2008

x86: make sure we really have an hpet mapping before using it



Impact: prepare the hpet code for Xen dom0 booting

When booting in Xen dom0, the hpet isn't really accessible, so make
sure the mapping is non-NULL before use.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent bacbe999

arch/x86/kernel/hpet.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -834,9 +834,10 @@ static __init int hpet_late_init(void)

		hpet_address = force_hpet_address;
		hpet_enable();
		}

		if (!hpet_virt_address)
		return -ENODEV;
		}

		hpet_reserve_platform_timers(hpet_readl(HPET_ID));