Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ec6bc552 authored by Michal Kazior's avatar Michal Kazior Committed by Kalle Valo
Browse files

ath10k: make sure to not leak beacon dma mapping 



If for some reason mac80211 wouldn't stop
beaconing gracefully and just removed interface of
a running AP/IBSS interface it was possible to
leak pending beacon DMA mapping. It's very
unlikely but better safe than sorry.

Signed-off-by: default avatarMichal Kazior <michal.kazior@tieto.com>
Signed-off-by: default avatarKalle Valo <kvalo@qca.qualcomm.com>
parent 216a1836

drivers/net/wireless/ath/ath10k/mac.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -2771,6 +2771,9 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw, 




	spin_lock_bh(&ar->data_lock);

	spin_lock_bh(&ar->data_lock);

	if (arvif->beacon) {

	if (arvif->beacon) {

		dma_unmap_single(arvif->ar->dev,

				 ATH10K_SKB_CB(arvif->beacon)->paddr,

				 arvif->beacon->len, DMA_TO_DEVICE);

		dev_kfree_skb_any(arvif->beacon);

		dev_kfree_skb_any(arvif->beacon);

		arvif->beacon = NULL;

		arvif->beacon = NULL;

	}

	}