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-rw-r--r--arch/x86/kernel/apic/x2apic_uv_x.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 8e9dcfd630e4..2a739a90010e 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -146,6 +146,9 @@ static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
int pnodeid, is_uv1, is_uv2, is_uv3;
+ if (strncmp(oem_id, "SGI", 3) != 0)
+ return 0;
+
is_uv1 = !strcmp(oem_id, "SGI");
is_uv2 = !strcmp(oem_id, "SGI2");
is_uv3 = !strncmp(oem_id, "SGI3", 4); /* there are varieties of UV3 */