diff options
Diffstat (limited to 'arch/i386/kernel/time_hpet.c')
| -rw-r--r-- | arch/i386/kernel/time_hpet.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/i386/kernel/time_hpet.c b/arch/i386/kernel/time_hpet.c index 1a2a979cf6a..1e4702dfcd0 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; |