tree 08d4834f3d2d4dfc7328db14c7a02d62bb091de5
parent eb8e8d670282c5bd7c7702731033c5f55a92d5b3
author Felix Fietkau <nbd@openwrt.org> 1406122854 +0200
committer Ke Dong <kedong@google.com> 1414717415 -0700

ath9k: fix aggregation session lockup

If an aggregation session fails, frames still end up in the driver queue
with IEEE80211_TX_CTL_AMPDU set.
This causes tx for the affected station/tid to stall, since
ath_tx_get_tid_subframe returning packets to send.

Fix this by clearing IEEE80211_TX_CTL_AMPDU as long as no aggregation
session is running.

Change-Id: I2a295520f7b448b409eac43265adb1b90c9d96c6
Cc: stable@vger.kernel.org
Reported-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>