Commit-ID: 82982d729319e975115d88cae4927dffb02bfea7
Gitweb: http://git.kernel.org/tip/82982d729319e975115d88cae4927dffb02bfea7
Author: Tang Chen <tangchen@xxxxxxxxxxxxxx>
AuthorDate: Tue, 23 Jul 2013 16:00:19 +0800
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Tue, 23 Jul 2013 10:08:16 +0200
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 <tangchen@xxxxxxxxxxxxxx>
Reviewed-by: Len Brown <len.brown@xxxxxxxxx>
Cc: pavel@xxxxxx
Cc: rjw@xxxxxxx
Link: http://lkml.kernel.org/r/1374566419-21120-1-git-send-email-tangchen@xxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/kernel/acpi/boot.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 2627a81..872a2d2 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;
}
--
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