mwl8k: Delete ampdu streams with state AMPDU_STREAM_NEW in sta remove

When a station deauths, we do not delete the streams with state
AMPDU_STREAM_NEW and these remain created forever. Fix this issue by
removing such streams in the driver

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 24 insertions, 1 deletions

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index 04442c6290a6..fc4d4a442139 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -3935,7 +3935,30 @@ static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
                                      struct ieee80211_vif *vif, u8 *addr)
 {
         struct mwl8k_cmd_set_new_stn *cmd;
-        int rc;
+        struct mwl8k_priv *priv = hw->priv;
+        int rc, i;
+        u8 idx;
+
+        spin_lock(&priv->stream_lock);
+        /* Destroy any active ampdu streams for this sta */
+        for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
+                struct mwl8k_ampdu_stream *s;
+                s = &priv->ampdu[i];
+                if (s->state != AMPDU_NO_STREAM) {
+                        if (memcmp(s->sta->addr, addr, ETH_ALEN) == 0) {
+                                if (s->state == AMPDU_STREAM_ACTIVE) {
+                                        idx = s->idx;
+                                        spin_unlock(&priv->stream_lock);
+                                        mwl8k_destroy_ba(hw, idx);
+                                        spin_lock(&priv->stream_lock);
+                                } else if (s->state == AMPDU_STREAM_NEW) {
+                                        mwl8k_remove_stream(hw, s);
+                                }
+                        }
+                }
+        }
+
+        spin_unlock(&priv->stream_lock);
 
         cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
         if (cmd == NULL)