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authorTang Chen <[email protected]>2013-07-23 16:00:19 +0800
committerIngo Molnar <[email protected]>2013-07-23 10:08:16 +0200
commit82982d729319e975115d88cae4927dffb02bfea7 (patch)
treee4f4c5a48bbcb0cddfe341ec1d07b1b222a63aae
parentb3a3a9c441e2c8f6b6760de9331023a7906a4ac6 (diff)
x86/acpi: Fix incorrect sanity check in acpi_register_lapic()
We wanted to check if the APIC ID is out of range. It should be: if (id >= MAX_LOCAL_APIC) There's no known bad effect of this bug. Signed-off-by: Tang Chen <[email protected]> Reviewed-by: Len Brown <[email protected]> Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
-rw-r--r--arch/x86/kernel/acpi/boot.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 2627a81253ee..872a2d255e41 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -199,7 +199,7 @@ static void acpi_register_lapic(int id, u8 enabled)
{
unsigned int ver = 0;
- if (id >= (MAX_LOCAL_APIC-1)) {
+ if (id >= MAX_LOCAL_APIC) {
printk(KERN_INFO PREFIX "skipped apicid that is too big\n");
return;
}