mfd: Convert WM8350 to devm_kzalloc()

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/wm8350-i2c.c b/drivers/mfd/wm8350-i2c.c
index 5fe5de1..d955faa 100644
--- a/drivers/mfd/wm8350-i2c.c
+++ b/drivers/mfd/wm8350-i2c.c
@@ -63,7 +63,7 @@
 	struct wm8350 *wm8350;
 	int ret = 0;
 
-	wm8350 = kzalloc(sizeof(struct wm8350), GFP_KERNEL);
+	wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
 	if (wm8350 == NULL)
 		return -ENOMEM;
 
@@ -80,7 +80,6 @@
 	return ret;
 
 err:
-	kfree(wm8350);
 	return ret;
 }
 
@@ -89,7 +88,6 @@
 	struct wm8350 *wm8350 = i2c_get_clientdata(i2c);
 
 	wm8350_device_exit(wm8350);
-	kfree(wm8350);
 
 	return 0;
 }