diff options
| -rw-r--r-- | arch/x86/kernel/mfgpt_32.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c index abdb7c71199..81aa9db01f5 100644 --- a/arch/x86/kernel/mfgpt_32.c +++ b/arch/x86/kernel/mfgpt_32.c @@ -249,8 +249,9 @@ __setup("mfgpt_irq=", mfgpt_setup); static void mfgpt_disable_timer(u16 clock) { - u16 val = geode_mfgpt_read(clock, MFGPT_REG_SETUP); - geode_mfgpt_write(clock, MFGPT_REG_SETUP, val & ~MFGPT_SETUP_CNTEN); + /* avoid races by clearing CMP1 and CMP2 unconditionally */ + geode_mfgpt_write(clock, MFGPT_REG_SETUP, (u16) ~MFGPT_SETUP_CNTEN | + MFGPT_SETUP_CMP1 | MFGPT_SETUP_CMP2); } static int mfgpt_next_event(unsigned long, struct clock_event_device *); |