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Commit 14ba31bb authored by Yang Yingliang's avatar Yang Yingliang Committed by Greg Kroah-Hartman
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wifi: libertas: cmdresp: don't call kfree_skb() under spin_lock_irqsave() 



[ Upstream commit 708a49a64237f19bd404852f297aaadbc9e7fee0 ]

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: f52b041a ("libertas: Add spinlock to avoid race condition")
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221207150008.111743-5-yangyingliang@huawei.com


Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 38ef7772

drivers/net/wireless/marvell/libertas/cmdresp.c

+1 −1
Original line number Diff line number Diff line
@@ -48,7 +48,7 @@ void lbs_mac_event_disconnected(struct lbs_private *priv, 


	/* Free Tx and Rx packets */

	spin_lock_irqsave(&priv->driver_lock, flags);

	kfree_skb(priv->currenttxskb);

	dev_kfree_skb_irq(priv->currenttxskb);

	priv->currenttxskb = NULL;

	priv->tx_pending_len = 0;

	spin_unlock_irqrestore(&priv->driver_lock, flags);