Re: [PATCH] Bluettoth: btusb: Prevent USB devices to autosuspend while setting interface

From: Marcel Holtmann
Date: Wed Nov 15 2017 - 08:55:05 EST


Hi Abhijeet,

> Runtime resume USB device in order to ensure that PM framework knows
> that the we might be using the device in a short time and doesn't
> autosuspend the device while we update it's interface.
>
> Signed-off-by: Abhijeet Kumar <abhijeet.kumar@xxxxxxxxx>
> ---
> drivers/bluetooth/btusb.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index 7a5c06aaa181..588aabf991be 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -1444,6 +1444,12 @@ static void btusb_work(struct work_struct *work)
> data->sco_skb = NULL;
> spin_unlock_irqrestore(&data->rxlock, flags);
>
> + /*
> + *Letting runtime PM know that we wish to use
> + *the device in a short time.
> + */
> + pm_runtime_get(&data->udev->dev);
> +

the indentation is wrong here and the comment coding style if off. Please fix.

Regards

Marcel