UPSTREAM mwifiex: fix memory leak issue when driver unload

[cascardo/linux.git] / drivers / net / wireless / mwifiex / main.c

diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 34cd418..0a95b46 100644 (file)
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -274,6 +274,7 @@ exit_main_proc:
                mwifiex_shutdown_drv(adapter);
        return ret;
 }
+EXPORT_SYMBOL_GPL(mwifiex_main_process);
 
 /*
  * This function frees the adapter structure.
@@ -562,10 +563,22 @@ mwifiex_tx_timeout(struct net_device *dev)
 {
        struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 
-       dev_err(priv->adapter->dev, "%lu : Tx timeout, bss_type-num = %d-%d\n",
-               jiffies, priv->bss_type, priv->bss_num);
-       mwifiex_set_trans_start(dev);
        priv->num_tx_timeout++;
+       priv->tx_timeout_cnt++;
+       dev_err(priv->adapter->dev,
+               "%lu : Tx timeout(#%d), bss_type-num = %d-%d\n",
+               jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num);
+       mwifiex_set_trans_start(dev);
+
+       if (priv->adapter->if_ops.reg_dbg)
+               priv->adapter->if_ops.reg_dbg(priv->adapter);
+
+       if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD &&
+           priv->adapter->if_ops.card_reset) {
+               dev_err(priv->adapter->dev, "tx_timeout_cnt exceeds threshold. "
+                       "Triggering card reset!\n");
+               priv->adapter->if_ops.card_reset(priv->adapter);
+       }
 }
 
 /*
@@ -620,6 +633,7 @@ void mwifiex_init_priv_params(struct mwifiex_private *priv,
                                                struct net_device *dev)
 {
        dev->netdev_ops = &mwifiex_netdev_ops;
+       dev->destructor = free_netdev;
        /* Initialize private structure */
        priv->current_key_index = 0;
        priv->media_connected = false;