qcacld-3.0: Don't process TX frame in unauthenticated state

qcacld-2.0 to qcacld-3.0 propagation

Process TX frame only when STA state is in Connected state
otherwise drop the frame.

Change-Id: Id384bb4a11bc2783b8017a8b4fac67ba4f708cb5
CRs-Fixed: 778274

core/hdd/src/wlan_hdd_tx_rx.c

@@ -347,6 +347,16 @@ int hdd_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			return NETDEV_TX_OK;
 		}
 	} else {
+		if (eConnectionState_Associated !=
+		    pHddStaCtx->conn_info.connState) {
+			CDF_TRACE(CDF_MODULE_ID_HDD_DATA, CDF_TRACE_LEVEL_INFO,
+				FL("Tx frame in not associated state in %d context"),
+				pAdapter->device_mode);
+			++pAdapter->stats.tx_dropped;
+			++pAdapter->hdd_stats.hddTxRxStats.txXmitDropped;
+			kfree_skb(skb);
+			return NETDEV_TX_OK;
+		}
 		STAId = pHddStaCtx->conn_info.staId[0];
 	}