diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index cbabc12fbda390d063218375eb2b4cadc3911b8f..e91cd0fa5ca81e3585e8173a0fb6a1789cfdaca7 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -645,6 +645,7 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 
 	tx_info = MWIFIEX_SKB_TXCB(skb);
+	memset(tx_info, 0, sizeof(*tx_info));
 	tx_info->bss_num = priv->bss_num;
 	tx_info->bss_type = priv->bss_type;
 	tx_info->pkt_len = skb->len;