3.6.11.5 stable review patch. If anyone has any objections, please let me know. ------------------ From: Amitkumar Karwar [ Upstream commit f16fdc9d2dc1e5b270e9a08377587e831e0d36ac ] After unregister_netdevice() call the request is queued and reg_state is changed to NETREG_UNREGISTERING. As we check for NETREG_UNREGISTERED state, free_netdev() never gets executed causing memory leak. Initialize "dev->destructor" to free_netdev() to free device data after unregistration. Cc: Reported-by: Daniel Drake Tested-by: Daniel Drake Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville Signed-off-by: Steven Rostedt --- drivers/net/wireless/mwifiex/cfg80211.c | 3 --- drivers/net/wireless/mwifiex/main.c | 1 + 2 files changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index b4719ea..23a6d94 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -1741,9 +1741,6 @@ int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) if (wdev->netdev->reg_state == NETREG_REGISTERED) unregister_netdevice(wdev->netdev); - if (wdev->netdev->reg_state == NETREG_UNREGISTERED) - free_netdev(wdev->netdev); - /* Clear the priv in adapter */ priv->netdev = NULL; diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c index 4680362..ec830ac 100644 --- a/drivers/net/wireless/mwifiex/main.c +++ b/drivers/net/wireless/mwifiex/main.c @@ -637,6 +637,7 @@ 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; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/