This is a note to let you know that I've just added the patch titled wcn36xx: Release DMA channel descriptor allocations to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: wcn36xx-release-dma-channel-descriptor-allocations.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit fb1490182a437f1a8029e7824f5a8ba483f5dfab Author: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> Date: Fri Nov 5 12:21:51 2021 +0000 wcn36xx: Release DMA channel descriptor allocations [ Upstream commit 3652096e5263ad67604b0323f71d133485f410e5 ] When unloading the driver we are not releasing the DMA descriptors which we previously allocated. Fixes: 8e84c2582169 ("wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware") Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20211105122152.1580542-3-bryan.odonoghue@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c index 4da25e84793b7..c400261352bc8 100644 --- a/drivers/net/wireless/ath/wcn36xx/dxe.c +++ b/drivers/net/wireless/ath/wcn36xx/dxe.c @@ -952,4 +952,9 @@ void wcn36xx_dxe_deinit(struct wcn36xx *wcn) wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_l_ch); wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_h_ch); + + wcn36xx_dxe_deinit_descs(wcn->dev, &wcn->dxe_tx_l_ch); + wcn36xx_dxe_deinit_descs(wcn->dev, &wcn->dxe_tx_h_ch); + wcn36xx_dxe_deinit_descs(wcn->dev, &wcn->dxe_rx_l_ch); + wcn36xx_dxe_deinit_descs(wcn->dev, &wcn->dxe_rx_h_ch); }