From: Johan Hovold <johan@xxxxxxxxxx>
commit 22cc6b7a1dbb58da4afc539d9b7d470b23a25eea upstream.
USB completion handlers are called in atomic context and must
specifically not allocate memory using GFP_KERNEL.
Fixes: a1c49c434e15 ("Bluetooth: btusb: Add protocol support for MediaTek MT7668U USB devices")
Cc: stable <stable@xxxxxxxxxxxxxxx> # 5.3
Cc: Sean Wang <sean.wang@xxxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/bluetooth/btusb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2585,7 +2585,7 @@ static void btusb_mtk_wmt_recv(struct ur
* 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;
}
