1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index cfb0f527841..effe7974aa9 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -202,17 +202,21 @@ static int __init init_acpi_pm_clocksource(void)
                         printk(KERN_INFO "PM-Timer had inconsistent results:"
                                " 0x%#llx, 0x%#llx - aborting.\n",
                                value1, value2);
+                        pmtmr_ioport = 0;
                         return -EINVAL;
                 }
                 if (i == ACPI_PM_READ_CHECKS) {
                         printk(KERN_INFO "PM-Timer failed consistency check "
                                " (0x%#llx) - aborting.\n", value1);
+                        pmtmr_ioport = 0;
                         return -ENODEV;
                 }
         }
 
-        if (verify_pmtmr_rate() != 0)
+        if (verify_pmtmr_rate() != 0){
+                pmtmr_ioport = 0;
                 return -ENODEV;
+        }
 
         return clocksource_register_hz(&clocksource_acpi_pm,
                                                 PMTMR_TICKS_PER_SEC);