mac80211: warn on some invalid vlan operations
These should never happen, but better warn about them than
crashing a driver, the fact that they never happen is rather
subtle throughout mac80211.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index c532043..dd838b7 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -156,6 +156,9 @@
if (WARN_ON(!netif_running(sdata->dev)))
return 0;
+ if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
+ return -EINVAL;
+
if (!local->ops->config_interface)
return 0;
@@ -321,6 +324,9 @@
{
struct ieee80211_local *local = sdata->local;
+ if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
+ return;
+
if (!changed)
return;