cfg80211: ignore spurious deauth

commit 643f82e32f14faf0d0944c804203a6681b6b0a1e upstream.

Ever since mac80211/drivers are no longer
fully in charge of keeping track of the
auth status, trying to make them do so will
fail. Instead of warning and reporting the
deauthentication to userspace, cfg80211 must
simply ignore it so that spurious
deauthentications, e.g. before starting
authentication, aren't seen by userspace as
actual deauthentications.

Reported-by: Paul Stewart <pstew@google.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 0d862482def8e1685549d083263a8fab6187950a..ec9a9d40a6c667ce3b8f5f4ed168508c98d457eb 100644 (file)
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -43,10 +43,10 @@ void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len)
                }
        }
 
-       WARN_ON(!done);
-
-       nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
-       cfg80211_sme_rx_auth(dev, buf, len);
+       if (done) {
+               nl80211_send_rx_auth(rdev, dev, buf, len, GFP_KERNEL);
+               cfg80211_sme_rx_auth(dev, buf, len);
+       }
 
        wdev_unlock(wdev);
 }