diff -Nur linux-3.10.14-orig/drivers/net/wireless/wifi_forward/wifi_fwd/wifi_fwd.c linux-3.10.14/drivers/net/wireless/wifi_forward/wifi_fwd/wifi_fwd.c
--- linux-3.10.14-orig/drivers/net/wireless/wifi_forward/wifi_fwd/wifi_fwd.c	2017-04-07 11:55:09.000000000 +0800
+++ linux-3.10.14/drivers/net/wireless/wifi_forward/wifi_fwd/wifi_fwd.c	2017-04-10 14:45:20.898046962 +0800
@@ -295,7 +295,7 @@
 
 static void dump_bridge_by_name(void)
 {
-	br0 = ra_dev_get_by_name("br0");
+	br0 = ra_dev_get_by_name("br-lan");
 }
 
 static void wifi_fwd_reset_link_count(void)
@@ -2548,6 +2548,12 @@
 	unsigned int recv_from = 0, band_from = 0, ret = 0;
 	int idx = 0;
 
+	if (mh == NULL ||skb == NULL)
+	{
+		printk("%s:mh=%p,skb=%p \n",__FUNCTION__,mh,skb);
+		return 1;
+	}
+
 	net_dev = skb->dev;
 	recv_from = WIFI_FWD_GET_PACKET_RECV_FROM(skb, recv_from_cb_offset);
 	band_from = WIFI_FWD_GET_PACKET_BAND(skb, band_cb_offset);
@@ -2585,6 +2591,12 @@
 	}
 	
 	/* forward the packet to bridge no matter unicast or broadcast */
+	if (mh->h_dest == NULL ||br0->dev_addr == NULL)
+	{
+		printk("%s mh->h_dest = %p,br0->dev_addr = %p\n",__FUNCTION__,mh->h_dest,br0->dev_addr);
+		return 1;
+	}
+
 	if ((br0->dev_addr != NULL) && MAC_ADDR_EQUAL(mh->h_dest, br0->dev_addr))
 		return 1;
 
diff -Nur linux-3.10.14-orig/drivers/net/wireless/wifi_forward/wifi_fwd_v1/wifi_fwd.c linux-3.10.14/drivers/net/wireless/wifi_forward/wifi_fwd_v1/wifi_fwd.c
--- linux-3.10.14-orig/drivers/net/wireless/wifi_forward/wifi_fwd_v1/wifi_fwd.c	2017-04-07 11:55:09.000000000 +0800
+++ linux-3.10.14/drivers/net/wireless/wifi_forward/wifi_fwd_v1/wifi_fwd.c	2017-04-10 14:45:36.464479582 +0800
@@ -204,7 +204,7 @@
 	ap1_5g = ra_dev_get_by_name("rai1");
 	apcli1_5g = ra_dev_get_by_name("apclii1");
 
-	br0 = ra_dev_get_by_name("br0");
+	br0 = ra_dev_get_by_name("br-lan");
 
 	dbg_print("[dump]ap_2g=0x%08X, apcli_2g=0x%08X, ap_5g=0x%08X, apcli_5g=0x%08X, br0=0x%08X\n",
 		(int)ap_2g, (int)apcli_2g, (int)ap_5g, (int)apcli_5g, (int)br0);
@@ -1991,7 +1991,12 @@
 	struct net_device *net_dev = NULL;
 	struct net_device *target = NULL;
 	struct ethhdr *mh = eth_hdr(skb);
-	
+
+	if (mh == NULL ||skb == NULL)
+	{
+		printk("%s:mh=%p,skb=%p \n",__FUNCTION__,mh,skb);
+		return 1;
+	}	
 	unsigned char type = ENTRY_TYPE_INVALID;
 	net_dev = skb->dev;
 
@@ -2026,6 +2031,11 @@
 	}
 	
 	/* handle packets from bridge no matter unicast or broadcast */
+	if (mh->h_dest == NULL ||br0->dev_addr == NULL)
+	{
+		printk("%s mh->h_dest = %p,br0->dev_addr = %p\n",__FUNCTION__,mh->h_dest,br0->dev_addr);
+		return 1;
+	}
 	if (MAC_ADDR_EQUAL(mh->h_dest, br0->dev_addr))
 		return 1;