qcacmn: Avoid un-initialized pointer access

Avoid un-initialized pointer access by initializing pointer to NULL
or valid value that is address of another variable.

Change-Id: I0666e7cebf9f39928b6b095fa4f7f017b5b2a837
CRs-Fixed: 2219381

target_if/cp_stats/src/target_if_cp_stats.c

@@ -65,6 +65,12 @@ target_if_cp_stats_register_tx_ops(struct wlan_lmac_if_tx_ops *tx_ops)
 		return QDF_STATUS_E_INVAL;
 	}
 
+	cp_stats_tx_ops = &tx_ops->cp_stats_tx_ops;
+	if (!cp_stats_tx_ops) {
+		cp_stats_err("lmac tx ops is NULL!");
+		return QDF_STATUS_E_FAILURE;
+	}
+
 	cp_stats_tx_ops->cp_stats_attach =
 		target_if_cp_stats_register_event_handler;
 	cp_stats_tx_ops->cp_stats_detach =

umac/cp_stats/core/src/wlan_cp_stats_obj_mgr_handler.c

@@ -33,10 +33,10 @@
 QDF_STATUS
 wlan_cp_stats_psoc_obj_create_handler(struct wlan_objmgr_psoc *psoc, void *arg)
 {
-	QDF_STATUS status   = QDF_STATUS_E_FAILURE;
 	WLAN_DEV_TYPE dev_type;
-	struct psoc_cp_stats *psoc_cs;
-	struct cp_stats_context *csc;
+	struct cp_stats_context *csc = NULL;
+	struct psoc_cp_stats *psoc_cs = NULL;
+	QDF_STATUS status = QDF_STATUS_E_FAILURE;
 
 	if (!psoc) {
 		cp_stats_err("PSOC is NULL");
@@ -144,9 +144,9 @@ wlan_cp_stats_psoc_obj_destroy_handler(struct wlan_objmgr_psoc *psoc, void *arg)
 QDF_STATUS
 wlan_cp_stats_pdev_obj_create_handler(struct wlan_objmgr_pdev *pdev, void *arg)
 {
+	struct cp_stats_context *csc = NULL;
+	struct pdev_cp_stats *pdev_cs = NULL;
 	QDF_STATUS status = QDF_STATUS_E_FAILURE;
-	struct pdev_cp_stats *pdev_cs;
-	struct cp_stats_context *csc;
 
 	if (!pdev) {
 		cp_stats_err("PDEV is NULL");
@@ -231,9 +231,9 @@ wlan_cp_stats_pdev_obj_destroy_handler(struct wlan_objmgr_pdev *pdev, void *arg)
 QDF_STATUS
 wlan_cp_stats_vdev_obj_create_handler(struct wlan_objmgr_vdev *vdev, void *arg)
 {
+	struct cp_stats_context *csc = NULL;
+	struct vdev_cp_stats *vdev_cs = NULL;
 	QDF_STATUS status = QDF_STATUS_E_FAILURE;
-	struct vdev_cp_stats *vdev_cs;
-	struct cp_stats_context *csc;
 
 	if (!vdev) {
 		cp_stats_err("vdev is NULL");
@@ -318,9 +318,9 @@ wlan_cp_stats_vdev_obj_destroy_handler(struct wlan_objmgr_vdev *vdev, void *arg)
 QDF_STATUS
 wlan_cp_stats_peer_obj_create_handler(struct wlan_objmgr_peer *peer, void *arg)
 {
+	struct cp_stats_context *csc = NULL;
+	struct peer_cp_stats *peer_cs = NULL;
 	QDF_STATUS status = QDF_STATUS_E_FAILURE;
-	struct peer_cp_stats *peer_cs;
-	struct cp_stats_context *csc;
 
 	if (!peer) {
 		cp_stats_err("peer is NULL");