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-rw-r--r--arch/x86/kernel/hpet.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index c43e96a938d0..c6f791bc481e 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -827,10 +827,6 @@ int __init hpet_enable(void)
if (!hpet_cfg_working())
goto out_nohpet;
- /* Validate that the counter is counting */
- if (!hpet_counting())
- goto out_nohpet;
-
/*
* Read the period and check for a sane value:
*/
@@ -896,6 +892,14 @@ int __init hpet_enable(void)
}
hpet_print_config();
+ /*
+ * Validate that the counter is counting. This needs to be done
+ * after sanitizing the config registers to properly deal with
+ * force enabled HPETs.
+ */
+ if (!hpet_counting())
+ goto out_nohpet;
+
clocksource_register_hz(&clocksource_hpet, (u32)hpet_freq);
if (id & HPET_ID_LEGSUP) {