diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 982f1f5..4cd392d 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -442,7 +442,6 @@
 static int __init smbios_present(const char __iomem *p)
 {
 	u8 buf[32];
-	int offset = 0;
 
 	memcpy_fromio(buf, p, 32);
 	if ((buf[5] < 32) && dmi_checksum(buf, buf[5])) {
@@ -461,9 +460,9 @@
 			dmi_ver = 0x0206;
 			break;
 		}
-		offset = 16;
+		return memcmp(p + 16, "_DMI_", 5) || dmi_present(p + 16);
 	}
-	return dmi_present(buf + offset);
+	return 1;
 }
 
 void __init dmi_scan_machine(void)