From 9d71d47eed20f34620e54e29bcc90f959d5873b8 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 17 Mar 2016 10:51:04 +0100
Subject: [PATCH] ath10k: fix tx hang
The wake_tx_queue/push_pending logic had a bug
which could stop queues indefinitely effectivelly
breaking traffic.
Fixes: 299468782d94 ("ath10k: implement wake_tx_queue")
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index eedfe821700b1..1bc4bf1916a6d 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3777,13 +3777,13 @@ void ath10k_mac_tx_push_pending(struct ath10k *ar)
}
list_del_init(&artxq->list);
+ if (ret != -ENOENT)
+ list_add_tail(&artxq->list, &ar->txqs);
+
ath10k_htt_tx_txq_update(hw, txq);
- if (artxq == last || (ret < 0 && ret != -ENOENT)) {
- if (ret != -ENOENT)
- list_add_tail(&artxq->list, &ar->txqs);
+ if (artxq == last || (ret < 0 && ret != -ENOENT))
break;
- }
}
rcu_read_unlock();