qcacld-3.0: Add peer to inactive list based on unmap ref count

Currently dp peer is being added to inactive list during force
delete, but there is possiblity of peer getting freed up if
unmap ref count is not pending and leading to double free during
pdev cleanup.

To avoid this add the peer to inactive list only if unmap ref
count is pending.

Change-Id: Ib55a92dd36c4ec4a26d3103896ca31ff3d845148
CRs-Fixed: 3110728

core/dp/txrx/ol_txrx_peer_find.c

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2011-2021 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -787,9 +788,11 @@ void ol_txrx_peer_remove_obj_map_entries(ol_txrx_pdev_handle pdev,
 		peer->peer_ids[i] = HTT_INVALID_PEER;
 	}
 	qdf_atomic_init(&peer->del_ref_cnt);
-	qdf_atomic_add(num_deleted_maps, &peer->del_ref_cnt);
-	TAILQ_INSERT_TAIL(&pdev->inactive_peer_list, peer,
-			  inactive_peer_list_elem);
+	if (num_deleted_maps != 0) {
+		qdf_atomic_add(num_deleted_maps, &peer->del_ref_cnt);
+		TAILQ_INSERT_TAIL(&pdev->inactive_peer_list, peer,
+				  inactive_peer_list_elem);
+	}
 	qdf_spin_unlock_bh(&pdev->peer_map_unmap_lock);
 
 	/* Debug print the information after releasing bh spinlock */