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From:   Yang Yingliang <yangyingliang@huawei.com>
To:     <kvalo@kernel.org>, <linux-wireless@vger.kernel.org>
CC:     <yangyingliang@huawei.com>
Subject: [PATCH v2] wl3501_cs: don't call kfree_skb() under spin_lock_irqsave()
Date:   Wed, 7 Dec 2022 23:04:53 +0800
Message-ID: <20221207150453.114742-1-yangyingliang@huawei.com>
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Precedence: bulk

It is not allowed to call kfree_skb() from hardware interrupt
context or with interrupts being disabled. So replace kfree_skb()
with dev_kfree_skb_irq() under spin_lock_irqsave(). Compile
tested only.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
v1 -> v2:
  Update commit message and add a fix tag.
---
 drivers/net/wireless/wl3501_cs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c
index 1b532e00a56f..7fb2f9513476 100644
--- a/drivers/net/wireless/wl3501_cs.c
+++ b/drivers/net/wireless/wl3501_cs.c
@@ -1328,7 +1328,7 @@ static netdev_tx_t wl3501_hard_start_xmit(struct sk_buff *skb,
 	} else {
 		++dev->stats.tx_packets;
 		dev->stats.tx_bytes += skb->len;
-		kfree_skb(skb);
+		dev_kfree_skb_irq(skb);
 
 		if (this->tx_buffer_cnt < 2)
 			netif_stop_queue(dev);
-- 
2.25.1