Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / watchdog.c

diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index 9d4c8d5a1f538b25b6698483ed37080ecb7652fc..c8c21be11ab48e25569b43a31aee148d7d89c6d1 100644 (file)
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -116,7 +116,7 @@ static unsigned long get_timestamp(int this_cpu)
        return cpu_clock(this_cpu) >> 30LL;  /* 2^30 ~= 10^9 */
 }
 
-static unsigned long get_sample_period(void)
+static u64 get_sample_period(void)
 {
        /*
         * convert watchdog_thresh from seconds to ns
@@ -125,7 +125,7 @@ static unsigned long get_sample_period(void)
         * and hard thresholds) to increment before the
         * hardlockup detector generates a warning
         */
-       return get_softlockup_thresh() * (NSEC_PER_SEC / 5);
+       return get_softlockup_thresh() * ((u64)NSEC_PER_SEC / 5);
 }
 
 /* Commands for resetting the watchdog */
@@ -368,6 +368,9 @@ static void watchdog_disable(unsigned int cpu)
 {
        struct hrtimer *hrtimer = &__raw_get_cpu_var(watchdog_hrtimer);
 
+       if (!watchdog_enabled)
+               return;
+
        watchdog_set_prio(SCHED_NORMAL, 0);
        hrtimer_cancel(hrtimer);
        /* disable the perf event */