rtc: don't reference bogus function pointer in kdoc

The mentioned function pointer is long gone since early 2011. Remove the
reference in the comment and reword it slightly.

Fixes: 51ba60c5bb3b ("RTC: Cleanup rtc_class_ops->update_irq_enable()")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index ccb7d6b4da3bb6b574eb2294dab112c36bce773c..56ed0c3a8c85e590ee54e67385817ae382849b62 100644 (file)
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -573,10 +573,9 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled)
        mutex_unlock(&rtc->ops_lock);
 #ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL
        /*
-        * Enable emulation if the driver did not provide
-        * the update_irq_enable function pointer or if returned
-        * -EINVAL to signal that it has been configured without
-        * interrupts or that are not available at the moment.
+        * Enable emulation if the driver returned -EINVAL to signal that it has
+        * been configured without interrupts or they are not available at the
+        * moment.
         */
        if (err == -EINVAL)
                err = rtc_dev_update_irq_enable_emul(rtc, enabled);