qcacld-3.0: Validate session while processing IPA pending events

Some times HTT response for suspend IPA pipes from FW host arrives
after vdev has been cleaned up at FW. After receiving FW HTT IPA
pipe suspend response HOST processes pending events. For event AP
DISCONNECT HOST sends IPA offload disable command to FW with vdev
id that has been deleted at FW. As a result FW asserts.

In this change before processing IPA WLAN pending events validate the
session. If session exists then only process the events.

Change-Id: I464a91c3a85e6002297d9ade2fbd45b45a2a4d51
CRs-Fixed: 2261111

components/ipa/core/src/wlan_ipa_core.c

@@ -1903,7 +1903,13 @@ wlan_ipa_uc_proc_pending_event(struct wlan_ipa_priv *ipa_ctx, bool is_loading)
 	qdf_list_remove_front(&ipa_ctx->pending_event,
 			(qdf_list_node_t **)&pending_event);
 	while (pending_event != NULL) {
-		if (pending_event->is_loading == is_loading) {
+		struct wlan_objmgr_pdev *pdev = ipa_ctx->pdev;
+		struct wlan_objmgr_psoc *psoc = wlan_pdev_get_psoc(pdev);
+		struct wlan_objmgr_vdev *vdev =
+				wlan_objmgr_get_vdev_by_id_from_psoc(psoc,
+					pending_event->session_id,
+					WLAN_IPA_ID);
+		if (pending_event->is_loading == is_loading && vdev) {
 			__wlan_ipa_wlan_evt(pending_event->net_dev,
 					   pending_event->device_mode,
 					   pending_event->sta_id,
@@ -1911,6 +1917,9 @@ wlan_ipa_uc_proc_pending_event(struct wlan_ipa_priv *ipa_ctx, bool is_loading)
 					   pending_event->type,
 					   pending_event->mac_addr);
 		}
+
+		if (vdev)
+			wlan_objmgr_vdev_release_ref(vdev, WLAN_IPA_ID);
 		qdf_mem_free(pending_event);
 		pending_event = NULL;
 		qdf_list_remove_front(&ipa_ctx->pending_event,