[PATCH] i386: Add iounmap in error paths in hpet code

Signed-off-by: Amol Lad <amol@verismonetworks.com>
Signed-off-by: Andi Kleen <ak@suse.de>

1 files changed, 12 insertions, 3 deletions

diff --git a/arch/i386/kernel/time_hpet.c b/arch/i386/kernel/time_hpet.c
index 1a2a979cf6a3..1e4702dfcd01 100644
--- a/arch/i386/kernel/time_hpet.c
+++ b/arch/i386/kernel/time_hpet.c
@@ -132,14 +132,20 @@ int __init hpet_enable(void)
          * the single HPET timer for system time.
          */
 #ifdef CONFIG_HPET_EMULATE_RTC
-        if (!(id & HPET_ID_NUMBER))
+        if (!(id & HPET_ID_NUMBER)) {
+                iounmap(hpet_virt_address);
+                hpet_virt_address = NULL;
                 return -1;
+        }
 #endif
 
 
         hpet_period = hpet_readl(HPET_PERIOD);
-        if ((hpet_period < HPET_MIN_PERIOD) || (hpet_period > HPET_MAX_PERIOD))
+        if ((hpet_period < HPET_MIN_PERIOD) || (hpet_period > HPET_MAX_PERIOD)) {
+                iounmap(hpet_virt_address);
+                hpet_virt_address = NULL;
                 return -1;
+        }
 
         /*
          * 64 bit math
@@ -156,8 +162,11 @@ int __init hpet_enable(void)
 
         hpet_use_timer = id & HPET_ID_LEGSUP;
 
-        if (hpet_timer_stop_set_go(hpet_tick))
+        if (hpet_timer_stop_set_go(hpet_tick)) {
+                iounmap(hpet_virt_address);
+                hpet_virt_address = NULL;
                 return -1;
+        }
 
         use_hpet = 1;