cc2520: use devm_kzalloc(.., sizeof(*pointer), ..) pattern

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/net/ieee802154/cc2520.c b/drivers/net/ieee802154/cc2520.c
index 0334734..bc24d9a 100644
--- a/drivers/net/ieee802154/cc2520.c
+++ b/drivers/net/ieee802154/cc2520.c
@@ -843,8 +843,7 @@
 	struct cc2520_platform_data *pdata;
 	int ret;
 
-	priv = devm_kzalloc(&spi->dev,
-			    sizeof(struct cc2520_private), GFP_KERNEL);
+	priv = devm_kzalloc(&spi->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv) {
 		ret = -ENOMEM;
 		goto err_ret;