diff options
Diffstat (limited to 'arch/arm/mach-mx6/bus_freq.c')
| -rw-r--r-- | arch/arm/mach-mx6/bus_freq.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-mx6/bus_freq.c b/arch/arm/mach-mx6/bus_freq.c index 23f56d5deaf1..151b4ee27eb6 100644 --- a/arch/arm/mach-mx6/bus_freq.c +++ b/arch/arm/mach-mx6/bus_freq.c @@ -501,6 +501,8 @@ static int busfreq_suspend(struct platform_device *pdev, pm_message_t message) static int bus_freq_pm_notify(struct notifier_block *nb, unsigned long event, void *dummy) { + mutex_lock(&bus_freq_mutex); + if (event == PM_SUSPEND_PREPARE) { set_high_bus_freq(1); busfreq_suspended = 1; @@ -508,6 +510,8 @@ static int bus_freq_pm_notify(struct notifier_block *nb, unsigned long event, busfreq_suspended = 0; } + mutex_unlock(&bus_freq_mutex); + return NOTIFY_OK; } static int busfreq_resume(struct platform_device *pdev) |