The rx worker of SDIO should be cancelled after disable interrupt, and
release rx sk_buff in queue, otherwise the rx worker maybe still run
after hif_stop. And it should be cancelled before napi_synchronize in
hif_stop, because the rx worker of SDIO will call napi_schedule, it
should have no napi_schedule before napi_synchronize, otherwise it
lead napi_synchronize wait untill napi_complete.
Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00049
Signed-off-by: Wen Gong <wgong@xxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/sdio.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/sdio.c b/drivers/net/wireless/ath/ath10k/sdio.c
index 81ddaafb6721..2c619ef8a87c 100644
--- a/drivers/net/wireless/ath/ath10k/sdio.c
+++ b/drivers/net/wireless/ath/ath10k/sdio.c
@@ -1962,9 +1962,15 @@ static void ath10k_sdio_hif_stop(struct ath10k *ar)
{
struct ath10k_sdio_bus_request *req, *tmp_req;
struct ath10k_sdio *ar_sdio = ath10k_sdio_priv(ar);
+ struct sk_buff *skb;
ath10k_sdio_irq_disable(ar);
+ cancel_work_sync(&ar_sdio->async_work_rx);
+
+ while (skb = skb_dequeue(&ar_sdio->rx_head))
+ dev_kfree_skb_any(skb);
+
cancel_work_sync(&ar_sdio->wr_async_work);
spin_lock_bh(&ar_sdio->wr_async_lock);
--
2.23.0
