diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index f3297367df8b..d832aa55056f 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -1280,14 +1280,14 @@ static int uvc_gpio_parse(struct uvc_device *dev) struct gpio_desc *gpio_privacy; int irq; - gpio_privacy = devm_gpiod_get_optional(&dev->udev->dev, "privacy", + gpio_privacy = devm_gpiod_get_optional(&dev->intf->dev, "privacy", GPIOD_IN); if (IS_ERR_OR_NULL(gpio_privacy)) return PTR_ERR_OR_ZERO(gpio_privacy); irq = gpiod_to_irq(gpio_privacy); if (irq < 0) - return dev_err_probe(&dev->udev->dev, irq, + return dev_err_probe(&dev->intf->dev, irq, "No IRQ for privacy GPIO\n"); unit = uvc_alloc_entity(UVC_EXT_GPIO_UNIT, UVC_EXT_GPIO_UNIT_ID, 0, 1); @@ -1313,15 +1313,27 @@ static int uvc_gpio_parse(struct uvc_device *dev) static int uvc_gpio_init_irq(struct uvc_device *dev) { struct uvc_entity *unit = dev->gpio_unit; + int ret; if (!unit || unit->gpio.irq < 0) return 0; - return devm_request_threaded_irq(&dev->udev->dev, unit->gpio.irq, NULL, - uvc_gpio_irq, - IRQF_ONESHOT | IRQF_TRIGGER_FALLING | - IRQF_TRIGGER_RISING, - "uvc_privacy_gpio", dev); + ret = request_threaded_irq(unit->gpio.irq, NULL, uvc_gpio_irq, + IRQF_ONESHOT | IRQF_TRIGGER_FALLING | + IRQF_TRIGGER_RISING, + "uvc_privacy_gpio", dev); + + unit->gpio.initialized = !ret; + + return ret; +} + +static void uvc_gpio_deinit(struct uvc_device *dev) +{ + if (!dev->gpio_unit || !dev->gpio_unit->gpio.initialized) + return; + + free_irq(dev->gpio_unit->gpio.irq, dev); } /* ------------------------------------------------------------------------ @@ -1918,6 +1930,8 @@ static void uvc_unregister_video(struct uvc_device *dev) { struct uvc_streaming *stream; + uvc_gpio_deinit(dev); + list_for_each_entry(stream, &dev->streams, list) { /* Nothing to do here, continue. */ if (!video_is_registered(&stream->vdev)) diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index b7d24a853ce4..e9060cfa4fda 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -234,6 +234,7 @@ struct uvc_entity { u8 *bmControls; struct gpio_desc *gpio_privacy; int irq; + bool initialized; } gpio; };