Commit 0913307b authored Dec 07, 2022 by Yang Yingliang Committed by Greg Kroah-Hartman Jan 07, 2023

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



[ Upstream commit 7b503e339c1a80bf0051ec2d19c3bc777014ac61 ]

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: 1da177e4 ("Linux-2.6.12-rc2")
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>

parent 5c366b96

drivers/bluetooth/hci_bcsp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -392,7 +392,7 @@ static void bcsp_pkt_cull(struct bcsp_struct *bcsp)
		i++;

		__skb_unlink(skb, &bcsp->unack);
		kfree_skb(skb);
		dev_kfree_skb_irq(skb);
		}

		if (skb_queue_empty(&bcsp->unack))