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

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().

Yang Yingliang committed 3 years ago

Commit 39c1eb61 parent 7b503e31 file · +1 −1Browse files

Unified · Split

net/bluetooth/hci_core.c+1−1

@@ -3985,7 +3985,7 @@ void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status, · 3984 unmodified lines
3985	3985	*req_complete_skb = bt_cb(skb)->hci.req_complete_skb;
3986	3986	else
3987	3987	*req_complete = bt_cb(skb)->hci.req_complete;
3988		− kfree_skb(skb);
	3988	+ dev_kfree_skb_irq(skb);
3989	3989	}
3990	3990	spin_unlock_irqrestore(&hdev->cmd_q.lock, flags);
3991	3991	}