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Bluetooth: btusb: fix non-atomic allocation in completion handler 

USB completion handlers are called in atomic context and must
specifically not allocate memory using GFP_KERNEL.

Fixes: a1c49c434e ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices")
Cc: stable <stable@vger.kernel.org>     # 5.3
Cc: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Johan Hovold 2019-11-28 19:24:27 +01:00 committed by Marcel Holtmann
parent 3cd9d35ee5
commit 22cc6b7a1d
1 changed files with 1 additions and 1 deletions
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2
drivers/bluetooth/btusb.c
View File

@ -2602,7 +2602,7 @@ static void btusb_mtk_wmt_recv(struct urb *urb)
* and being processed the events from there then.
*/
if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
data->evt_skb = skb_clone(skb, GFP_KERNEL);
data->evt_skb = skb_clone(skb, GFP_ATOMIC);
if (!data->evt_skb)
goto err_out;
}