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| author | Jan Beulich <jbeulich@novell.com> | 2009-01-14 12:28:51 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-15 23:48:19 +0100 |
| commit | 4a13ad0bd8869bb491c67918662f9b1852595af5 (patch) | |
| tree | ebc084ec5d23c3755ac56615cbddda1df8743b48 /arch | |
| parent | 5cca0cf15a94417f49625ce52e23589eed0a1675 (diff) | |
| download | blackbird-op-linux-4a13ad0bd8869bb491c67918662f9b1852595af5.tar.gz blackbird-op-linux-4a13ad0bd8869bb491c67918662f9b1852595af5.zip | |
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')
| -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 0f830e4f5675..d19aa3aab62b 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(); /* |
