[PATCH 4.19 049/239] wcn36xx: Release DMA channel descriptor allocations

[Greg Kroah-Hartman]

From: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>

[ 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>
---
 drivers/net/wireless/ath/wcn36xx/dxe.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
index 657525988d1ee..38eef1579db2d 100644
--- a/drivers/net/wireless/ath/wcn36xx/dxe.c
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -954,4 +954,9 @@ 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);
 }
-- 
2.34.1