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x86: avoid early crash in disable_local_APIC()

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E.g. when called due to an early panic.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Jan Beulich 2009-01-14 12:28:51 +00:00 • committed by Ingo Molnar
parent f11826385b
commit a08c4743ed
1 changed files with 4 additions and 0 deletions

4
arch/x86/kernel/apic.c
View file

@ -895,6 +895,10 @@ void disable_local_APIC(void)
{
unsigned int value;
/* APIC hasn't been mapped yet */
if (!apic_phys)
return;
clear_local_APIC();
/*