i2c: Document the message size limit

[safe/jmp/linux-2.6] / drivers / rtc / rtc-ds1307.c

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index 47a93c0..c4ec5c1 100644 (file)
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -874,13 +874,15 @@ read_rtc:
        }
 
        if (want_irq) {
-               err = request_irq(client->irq, ds1307_irq, 0,
+               err = request_irq(client->irq, ds1307_irq, IRQF_SHARED,
                          ds1307->rtc->name, client);
                if (err) {
                        dev_err(&client->dev,
                                "unable to request IRQ!\n");
                        goto exit_irq;
                }
+
+               device_set_wakeup_capable(&client->dev, 1);
                set_bit(HAS_ALARM, &ds1307->flags);
                dev_dbg(&client->dev, "got IRQ %d\n", client->irq);
        }
@@ -896,8 +898,7 @@ read_rtc:
        return 0;
 
 exit_irq:
-       if (ds1307->rtc)
-               rtc_device_unregister(ds1307->rtc);
+       rtc_device_unregister(ds1307->rtc);
 exit_free:
        kfree(ds1307);
        return err;