V4L/DVB (13616): IR: rename ir_input_free as ir_input_unregister

Now, ir_input_free does more than just freeing the keytab. Better to
rename it as ir_input_unregister.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx23885/cx23885-input.c b/drivers/media/video/cx23885/cx23885-input.c
index 469e083..2a5e4d9 100644
--- a/drivers/media/video/cx23885/cx23885-input.c
+++ b/drivers/media/video/cx23885/cx23885-input.c
@@ -407,7 +407,7 @@
 	cx23885_input_ir_stop(dev);
 	dev->ir_input = NULL;
 err_out_free:
-	ir_input_free(input_dev);
+	ir_input_unregister(input_dev);
 	input_free_device(input_dev);
 	kfree(ir);
 	return ret;
@@ -420,7 +420,7 @@
 
 	if (dev->ir_input == NULL)
 		return;
-	ir_input_free(dev->ir_input->dev);
+	ir_input_unregister(dev->ir_input->dev);
 	input_unregister_device(dev->ir_input->dev);
 	kfree(dev->ir_input);
 	dev->ir_input = NULL;