diff options
author | Jan Beulich <jbeulich@novell.com> | 2009-01-14 12:28:51 (GMT) |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2009-01-15 11:04:40 (GMT) |
commit | a08c4743ed5b861c4fa3d75be00da7106c926296 (patch) | |
tree | 7f9cc2a8e1edd30c499f59d90363303681ab3530 /arch/x86/kernel/apic.c | |
parent | f11826385b63566d98c02d35f592232ee77cd791 (diff) | |
download | linux-fsl-qoriq-a08c4743ed5b861c4fa3d75be00da7106c926296.tar.xz |
x86: avoid early crash in disable_local_APIC()
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>
Diffstat (limited to 'arch/x86/kernel/apic.c')
-rw-r--r-- | arch/x86/kernel/apic.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c index c3dd64f..38d6aab 100644 --- a/arch/x86/kernel/apic.c +++ b/arch/x86/kernel/apic.c @@ -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(); /* |