Messages in this thread Patch in this message | | | Date | Mon, 2 Aug 2021 23:14:29 +0100 | From | Salah Triki <> | Subject | [PATCH] usb: bluetooth: get lock before calling usb_[disable|enable]_autosuspend() |
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Based on the documentation of usb_[disable|enable]_autosuspend(), the caller must hold udev's device lock.
Signed-off-by: Salah Triki <salah.triki@gmail.com> --- drivers/bluetooth/btusb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index a9855a2dd561..2ceb48164b6d 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -1939,8 +1939,11 @@ static int btusb_setup_csr(struct hci_dev *hdev) device_set_wakeup_capable(&data->udev->dev, false); /* Re-enable autosuspend if this was requested */ - if (enable_autosuspend) + if (enable_autosuspend) { + usb_lock_device(data->udev); usb_enable_autosuspend(data->udev); + usb_unlock_device(data->udev); + } } } -- 2.25.1
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