diff --git a/drivers/staging/rtl8723bs/os_dep/sdio_intf.c b/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
index 943324877707..99c407ba0874 100644
--- a/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
+++ b/drivers/staging/rtl8723bs/os_dep/sdio_intf.c
@@ -337,7 +337,7 @@ static struct adapter *rtw_sdio_if1_init(struct dvobj_priv *dvobj, const struct
 	struct adapter *padapter = NULL;
 	PSDIO_DATA psdio = &dvobj->intf_data;
 
-	padapter = (struct adapter *)vzalloc(sizeof(*padapter));
+	padapter = vzalloc(sizeof(*padapter));
 	if (padapter == NULL) {
 		goto exit;
 	}