diff options
Diffstat (limited to 'arch/sparc64/kernel/time.c')
| -rw-r--r-- | arch/sparc64/kernel/time.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c index e5d238970c7e..a0c6a97eec6e 100644 --- a/arch/sparc64/kernel/time.c +++ b/arch/sparc64/kernel/time.c @@ -11,6 +11,7 @@ #include <linux/errno.h> #include <linux/module.h> #include <linux/sched.h> +#include <linux/smp_lock.h> #include <linux/kernel.h> #include <linux/param.h> #include <linux/string.h> @@ -883,6 +884,16 @@ static struct notifier_block sparc64_cpufreq_notifier_block = { .notifier_call = sparc64_cpufreq_notifier }; +static int __init register_sparc64_cpufreq_notifier(void) +{ + + cpufreq_register_notifier(&sparc64_cpufreq_notifier_block, + CPUFREQ_TRANSITION_NOTIFIER); + return 0; +} + +core_initcall(register_sparc64_cpufreq_notifier); + #endif /* CONFIG_CPU_FREQ */ static int sparc64_next_event(unsigned long delta, @@ -1049,11 +1060,6 @@ void __init time_init(void) sparc64_clockevent.mult, sparc64_clockevent.shift); setup_sparc64_timer(); - -#ifdef CONFIG_CPU_FREQ - cpufreq_register_notifier(&sparc64_cpufreq_notifier_block, - CPUFREQ_TRANSITION_NOTIFIER); -#endif } unsigned long long sched_clock(void) @@ -1659,10 +1665,14 @@ static int mini_rtc_ioctl(struct inode *inode, struct file *file, static int mini_rtc_open(struct inode *inode, struct file *file) { - if (mini_rtc_status & RTC_IS_OPEN) + lock_kernel(); + if (mini_rtc_status & RTC_IS_OPEN) { + unlock_kernel(); return -EBUSY; + } mini_rtc_status |= RTC_IS_OPEN; + unlock_kernel(); return 0; } |