V4L/DVB (10497): saa7146: i2c adapdata now points to v4l2_device.

Prepare for converting to v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/common/saa7146_i2c.c b/drivers/media/common/saa7146_i2c.c
index c11da4d..1b64074a 100644
--- a/drivers/media/common/saa7146_i2c.c
+++ b/drivers/media/common/saa7146_i2c.c
@@ -390,7 +390,8 @@
 /* utility functions */
 static int saa7146_i2c_xfer(struct i2c_adapter* adapter, struct i2c_msg *msg, int num)
 {
-	struct saa7146_dev* dev = i2c_get_adapdata(adapter);
+	struct v4l2_device *v4l2_dev = i2c_get_adapdata(adapter);
+	struct saa7146_dev *dev = to_saa7146_dev(v4l2_dev);
 
 	/* use helper function to transfer data */
 	return saa7146_i2c_transfer(dev, msg, num, adapter->retries);
@@ -419,7 +420,7 @@
 
 	if( NULL != i2c_adapter ) {
 		BUG_ON(!i2c_adapter->class);
-		i2c_set_adapdata(i2c_adapter,dev);
+		i2c_set_adapdata(i2c_adapter, &dev->v4l2_dev);
 		i2c_adapter->dev.parent    = &dev->pci->dev;
 		i2c_adapter->algo	   = &saa7146_algo;
 		i2c_adapter->algo_data     = NULL;