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Commit 54c7317b authored by Yang Yingliang's avatar Yang Yingliang Committed by Greg Kroah-Hartman
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Bluetooth: hci_core: don't call kfree_skb() under spin_lock_irqsave() 



[ Upstream commit 39c1eb6fcbae8ce9bb71b2ac5cb609355a2b181b ]

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: 9238f36a ("Bluetooth: Add request cmd_complete and cmd_status functions")
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 0913307b

net/bluetooth/hci_core.c

+1 −1
Original line number Diff line number Diff line
@@ -4181,7 +4181,7 @@ 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);

}