Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

[karo-tx-linux.git] / drivers / rtc / interface.c

diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 925006d331099699e27b26012050b81cd3acbcce..a0c01967244d381e1aecf3665a885be191efbb24 100644 (file)
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -464,6 +464,9 @@ int rtc_irq_set_freq(struct rtc_device *rtc, struct rtc_task *task, int freq)
        int err = 0;
        unsigned long flags;
 
+       if (freq <= 0)
+               return -EINVAL;
+
        spin_lock_irqsave(&rtc->irq_task_lock, flags);
        if (rtc->irq_task != NULL && task == NULL)
                err = -EBUSY;