diff --git a/[refs] b/[refs]
index 79a84aebf05c..282247cd4592 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d4913dc6d0c680aa106d1d80b5ad2a9325367afd
+refs/heads/master: aab61b676a024d3527f6201e2b31285a96f7a1d2
diff --git a/trunk/drivers/acpi/acpica/tbfadt.c b/trunk/drivers/acpi/acpica/tbfadt.c
index af8fbe12d8b7..ff89cfee0e7e 100644
--- a/trunk/drivers/acpi/acpica/tbfadt.c
+++ b/trunk/drivers/acpi/acpica/tbfadt.c
@@ -491,7 +491,8 @@ static void acpi_tb_validate_fadt(void)
 		 * For each extended field, check for length mismatch between the
 		 * legacy length field and the corresponding 64-bit X length field.
 		 */
-		if (address64 && (address64->bit_width != ACPI_MUL_8(length))) {
+		if (address64->address &&
+		    (address64->bit_width != ACPI_MUL_8(length))) {
 			ACPI_WARNING((AE_INFO,
 				      "32/64X length mismatch in %s: %d/%d",
 				      name, ACPI_MUL_8(length),