WorkStruct: make allyesconfig

Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
diff --git a/drivers/media/video/saa6588.c b/drivers/media/video/saa6588.c
index a81285c..8ba05c2 100644
--- a/drivers/media/video/saa6588.c
+++ b/drivers/media/video/saa6588.c
@@ -322,9 +322,9 @@
 	schedule_work(&s->work);
 }
 
-static void saa6588_work(void *data)
+static void saa6588_work(struct work_struct *work)
 {
-	struct saa6588 *s = (struct saa6588 *)data;
+	struct saa6588 *s = container_of(work, struct saa6588, work);
 
 	saa6588_i2c_poll(s);
 	mod_timer(&s->timer, jiffies + msecs_to_jiffies(20));
@@ -417,7 +417,7 @@
 	saa6588_configure(s);
 
 	/* start polling via eventd */
-	INIT_WORK(&s->work, saa6588_work, s);
+	INIT_WORK(&s->work, saa6588_work);
 	init_timer(&s->timer);
 	s->timer.function = saa6588_timer;
 	s->timer.data = (unsigned long)s;