From 9388ce97b98216833c969191ee6df61a7201d797 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Wed, 7 Dec 2022 23:00:05 +0800
Subject: [PATCH] wifi: libertas_tf: don't call kfree_skb() under spin_lock_irqsave()
Git-commit: 9388ce97b98216833c969191ee6df61a7201d797
Patch-mainline: v6.3-rc1
References: git-fixes
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: fc75122fabb5 ("libertas_tf: 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/20221207150008.111743-2-yangyingliang@huawei.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/marvell/libertas_tf/if_usb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/marvell/libertas_tf/if_usb.c b/drivers/net/wireless/marvell/libertas_tf/if_usb.c
index 75b5319d033f..1750f5e93de2 100644
--- a/drivers/net/wireless/marvell/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/marvell/libertas_tf/if_usb.c
@@ -613,7 +613,7 @@ static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff,
spin_lock_irqsave(&priv->driver_lock, flags);
memcpy(priv->cmd_resp_buff, recvbuff + MESSAGE_HEADER_LEN,
recvlength - MESSAGE_HEADER_LEN);
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
lbtf_cmd_response_rx(priv);
spin_unlock_irqrestore(&priv->driver_lock, flags);
}
--
2.35.3