diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index d6d97d8f3fa4b6cab0d3df24d872577eeaa72952..c11936e13dd3ccd39952b35b242e42dd5e0d1078 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -1072,7 +1072,14 @@ static int piix_broken_suspend(void)
 	 * matching is necessary because dmi_system_id.matches is
 	 * limited to four entries.
 	 */
-	if (!strcmp(dmi_get_system_info(DMI_SYS_VENDOR), "TOSHIBA") &&
+	if (dmi_get_system_info(DMI_SYS_VENDOR) &&
+	    dmi_get_system_info(DMI_PRODUCT_NAME) &&
+	    dmi_get_system_info(DMI_PRODUCT_VERSION) &&
+	    dmi_get_system_info(DMI_PRODUCT_SERIAL) &&
+	    dmi_get_system_info(DMI_BOARD_VENDOR) &&
+	    dmi_get_system_info(DMI_BOARD_NAME) &&
+	    dmi_get_system_info(DMI_BOARD_VERSION) &&
+	    !strcmp(dmi_get_system_info(DMI_SYS_VENDOR), "TOSHIBA") &&
 	    !strcmp(dmi_get_system_info(DMI_PRODUCT_NAME), "000000") &&
 	    !strcmp(dmi_get_system_info(DMI_PRODUCT_VERSION), "000000") &&
 	    !strcmp(dmi_get_system_info(DMI_PRODUCT_SERIAL), "000000") &&