mfd: Fix warning in WM8350

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index 382e38c..25a7a5d 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1161,7 +1161,6 @@
 {
 	int ret = -EINVAL;
 	u16 id1, id2, mask, mode;
-	int i;
 
 	/* get WM8350 revision and config mode */
 	wm8350->read_dev(wm8350, WM8350_RESET_ID, sizeof(id1), &id1);