diff options
Diffstat (limited to 'kernel/time/alarmtimer.c')
| -rw-r--r-- | kernel/time/alarmtimer.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 73a2b476e59f..ec09ce9a6012 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -28,6 +28,7 @@ #include <linux/workqueue.h> #include <linux/freezer.h> #include <linux/compat.h> +#include <linux/module.h> #include "posix-timers.h" @@ -103,6 +104,11 @@ static int alarmtimer_rtc_add_device(struct device *dev, spin_lock_irqsave(&rtcdev_lock, flags); if (!rtcdev) { + if (!try_module_get(rtc->owner)) { + spin_unlock_irqrestore(&rtcdev_lock, flags); + return -1; + } + rtcdev = rtc; /* hold a reference so it doesn't go away */ get_device(dev); |