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Bluetooth: hci_core: don't call kfree_skb() under spin_lock_irqsave()

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[ Upstream commit 39c1eb6fcb ]

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: 9238f36a5a ("Bluetooth: Add request cmd_complete and cmd_status functions")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yang Yingliang 2022-12-07 10:18:34 +08:00 • committed by Greg Kroah-Hartman
commit 4002180e07
1 changed files with 1 additions and 1 deletions
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2
net/bluetooth/hci_core.c
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@ -4910,7 +4910,7 @@ void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
*req_complete_skb = bt_cb(skb)->hci.req_complete_skb;
else
*req_complete = bt_cb(skb)->hci.req_complete;
kfree_skb(skb);
dev_kfree_skb_irq(skb);
}
spin_unlock_irqrestore(&hdev->cmd_q.lock, flags);
}