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[4.2.y-ckt,23/59] mac80211: fix statistics leak if dev_alloc_name() fails

Message ID 1462823777-8384-24-git-send-email-kamal@canonical.com
State New
Headers show

Commit Message

Kamal Mostafa May 9, 2016, 7:55 p.m. UTC 
4.2.8-ckt10 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Johannes Berg <johannes.berg@intel.com>

commit e6436be21e77e3659b4ff7e357ab5a8342d132d2 upstream.

In the case that dev_alloc_name() fails, e.g. because the name was
given by the user and already exists, we need to clean up properly
and free the per-CPU statistics. Fix that.

Fixes: 5a490510ba5f ("mac80211: use per-CPU TX/RX statistics")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/mac80211/iface.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 2caf837..a36c24d 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1750,7 +1750,7 @@  int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 		ret = dev_alloc_name(ndev, ndev->name);
 		if (ret < 0) {
-			free_netdev(ndev);
+			ieee80211_if_free(ndev);
 			return ret;
 		}
 
@@ -1826,7 +1826,7 @@  int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 		ret = register_netdevice(ndev);
 		if (ret) {
-			free_netdev(ndev);
+			ieee80211_if_free(ndev);
 			return ret;
 		}
 	}