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From:   Yang Yingliang <yangyingliang@huawei.com>
To:     <kvalo@kernel.org>, <libertas-dev@lists.infradead.org>,
        <linux-wireless@vger.kernel.org>
CC:     <yangyingliang@huawei.com>
Subject: [PATCH 2/4] libertas: don't call kfree_skb() under spin_lock_irqsave() in process_cmdrequest()
Date:   Tue, 6 Dec 2022 19:46:07 +0800
Message-ID: <20221206114609.2006175-3-yangyingliang@huawei.com>
In-Reply-To: <20221206114609.2006175-1-yangyingliang@huawei.com>
References: <20221206114609.2006175-1-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().

Fixes: a3128feef6d5 ("libertas: use irqsave() in USB's complete callback")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 drivers/net/wireless/marvell/libertas/if_usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/libertas/if_usb.c b/drivers/net/wireless/marvell/libertas/if_usb.c
index 32fdc4150b60..2240b4db8c03 100644
--- a/drivers/net/wireless/marvell/libertas/if_usb.c
+++ b/drivers/net/wireless/marvell/libertas/if_usb.c
@@ -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);
-- 
2.25.1