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

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commit 22cc6b7a1dbb58da4afc539d9b7d470b23a25eea upstream.

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 <[email protected]>     # 5.3
Cc: Sean Wang <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Johan Hovold 2019-11-28 19:24:27 +01:00 • committed by Greg Kroah-Hartman
commit 619c458f8f
1 changed files with 1 additions and 1 deletions
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2
drivers/bluetooth/btusb.c
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@ -2585,7 +2585,7 @@ 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;
}