Re: [PATCH v1 23/49] hid: usbhid: prepare for enabling irq in complete()

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On Sun, 18 Aug 2013, Ming Lei wrote:

> Complete() will be run with interrupt enabled, so change to
> spin_lock_irqsave().
> 
> Cc: Jiri Kosina <jkosina@xxxxxxx>
> Cc: linux-input@xxxxxxxxxxxxxxx
> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>

Acked-by: Jiri Kosina <jkosina@xxxxxxx>

> ---
>  drivers/hid/usbhid/hid-core.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
> index bd38cdf..2445fd6 100644
> --- a/drivers/hid/usbhid/hid-core.c
> +++ b/drivers/hid/usbhid/hid-core.c
> @@ -489,8 +489,9 @@ static void hid_ctrl(struct urb *urb)
>  	struct hid_device *hid = urb->context;
>  	struct usbhid_device *usbhid = hid->driver_data;
>  	int unplug = 0, status = urb->status;
> +	unsigned long flags;
>  
> -	spin_lock(&usbhid->lock);
> +	spin_lock_irqsave(&usbhid->lock, flags);
>  
>  	switch (status) {
>  	case 0:			/* success */
> @@ -525,7 +526,7 @@ static void hid_ctrl(struct urb *urb)
>  	}
>  
>  	clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
> -	spin_unlock(&usbhid->lock);
> +	spin_unlock_irqrestore(&usbhid->lock, flags);
>  	usb_autopm_put_interface_async(usbhid->intf);
>  	wake_up(&usbhid->wait);
>  }
> 

-- 
Jiri Kosina
SUSE Labs

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