qcacld-3.0: drop the Tx pkt if device is in system suspend

During suspend if the netif queue pause failed for some reason,
network stack may send the pkt for hard_start_xmit and will
crash due to device is in suspend state, so adding a check to
drop the pkt if device was already in system suspended.

Change-Id: I5b8f5511157f10e28297be4366fafe6e683c392b
CRs-Fixed: 2880892

core/hdd/src/wlan_hdd_softap_tx_rx.c

@@ -582,6 +582,11 @@ static void __hdd_softap_hard_start_xmit(struct sk_buff *skb,
 		goto drop_pkt;
 	}
 
+	if (hdd_ctx->hdd_wlan_suspended) {
+		hdd_err_rl("Device is system suspended, drop pkt");
+		goto drop_pkt;
+	}
+
 	/*
 	 * If the device is operating on a DFS Channel
 	 * then check if SAP is in CAC WAIT state and

core/hdd/src/wlan_hdd_tx_rx.c

@@ -1060,6 +1060,11 @@ static void __hdd_hard_start_xmit(struct sk_buff *skb,
 	if (wlan_hdd_validate_context(hdd_ctx))
 		goto drop_pkt;
 
+	if (hdd_ctx->hdd_wlan_suspended) {
+		hdd_err_rl("Device is system suspended, drop pkt");
+		goto drop_pkt;
+	}
+
 	wlan_hdd_classify_pkt(skb);
 	if (QDF_NBUF_CB_GET_PACKET_TYPE(skb) == QDF_NBUF_CB_PACKET_TYPE_ARP) {
 		if (qdf_nbuf_data_is_arp_req(skb) &&