qcacld-3.0: skip sap context destroy if it's NULL

The sap context is NULL when sap adapter is not started, skip
context destroy for such case, to avoid error level output.

CRs-Fixed: 2749376
Change-Id: I190a3e75187be6b6d70f5a70c71c87e563cd3f15

core/hdd/src/wlan_hdd_hostapd.c

@@ -3446,6 +3446,11 @@ bool hdd_sap_destroy_ctx(struct hdd_adapter *adapter)
 		adapter->session.ap.beacon = NULL;
 	}
 
+	if (!sap_ctx) {
+		hdd_debug("sap context is NULL");
+		return true;
+	}
+
 	hdd_debug("destroying sap context");
 
 	if (QDF_IS_STATUS_ERROR(sap_destroy_ctx(sap_ctx)))