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wifi: libertas: if_usb: don't call kfree_skb() under spin_lock_irqsave()

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[ Upstream commit 3968e81ba644f10a7d45bae2539560db9edac501 ]

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: a3128feef6d5 ("libertas: use irqsave() in USB's complete callback")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221207150008.111743-3-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yang Yingliang 2022-12-07 23:00:06 +08:00 committed by Greg Kroah-Hartman
parent 068e986f2b
commit e9c889b0c4
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/marvell/libertas/if_usb.c
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@ -637,7 +637,7 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
priv->resp_len[i] = (recvlength - MESSAGE_HEADER_LEN);
memcpy(priv->resp_buf[i], recvbuff + MESSAGE_HEADER_LEN,
priv->resp_len[i]);
kfree_skb(skb);
dev_kfree_skb_irq(skb);
lbs_notify_command_response(priv, i);
spin_unlock_irqrestore(&priv->driver_lock, flags);