Fixes leak of ath10k_peer structures if FW stops
responding suddenly and we unload the driver (e.g.
eject the device while we're associated and unload
the driver).
Signed-off-by: Michal Kazior
---
drivers/net/wireless/ath/ath10k/mac.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c
b/drivers/net/wireless/ath/ath10k/mac.c
index 930a092..818b8e6 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -350,6 +350,26 @@ static int ath10k_peer_delete(struct ath10k *ar, u32
vdev_id, const u8 *addr)
return 0;
}
+static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
+{
+ struct ath10k_peer *peer, *tmp;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ spin_lock_bh(&ar->data_lock);
+ list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
+ if (peer->vdev_id != vdev_id)
+ continue;
+
+ ath10k_warn("removing stale peer %pM from vdev_id %d\n",
+ peer->addr, vdev_id);
+
+ list_del(&peer->list);
+ kfree(peer);
+ }
+ spin_unlock_bh(&ar->data_lock);
+}
+
//
/* Interface management */
//
@@ -1773,6 +1793,8 @@ static void ath10k_remove_interface(struct ieee80211_hw
*hw,
if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
ar->monitor_present = false;
+ ath10k_peer_cleanup(ar, arvif->vdev_id);
+
mutex_unlock(&ar->conf_mutex);
}
--
1.7.9.5
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