Staging: rtl8192e: rtl8192e: Remove unnecessory variable

This patch removes unnecessory variable in file ret_core.c
using coccinelle script.Semantic patch for this is as follows:

@@
identifier ret;
@@

-int ret = 0;
 ... when != ret
     when strict
-return ret;
+return 0;

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtl8192e/rtl_core.c

@@ -669,19 +669,18 @@ static int rtl8192_handle_beacon(struct net_device *dev,
 static int rtl8192_qos_association_resp(struct r8192_priv *priv,
 	struct rtllib_network *network)
 {
-	int ret = 0;
 	unsigned long flags;
 	u32 size = sizeof(struct rtllib_qos_parameters);
 	int set_qos_param = 0;
 
 	if ((priv == NULL) || (network == NULL))
-		return ret;
+		return 0;
 
 	if (priv->rtllib->state != RTLLIB_LINKED)
-		return ret;
+		return 0;
 
 	if ((priv->rtllib->iw_mode != IW_MODE_INFRA))
-		return ret;
+		return 0;
 
 	spin_lock_irqsave(&priv->rtllib->lock, flags);
 	if (network->flags & NETWORK_HAS_QOS_PARAMETERS) {
@@ -711,7 +710,7 @@ static int rtl8192_qos_association_resp(struct r8192_priv *priv,
 		dm_init_edca_turbo(priv->rtllib->dev);
 		queue_work_rsl(priv->priv_wq, &priv->qos_activate);
 	}
-	return ret;
+	return 0;
 }
 
 static int rtl8192_handle_assoc_response(struct net_device *dev,