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path: root/drivers/media/usb/uvc/uvc_driver.c
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Diffstat (limited to 'drivers/media/usb/uvc/uvc_driver.c')
-rw-r--r--drivers/media/usb/uvc/uvc_driver.c30
1 files changed, 12 insertions, 18 deletions
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index cf27006c29dc..5970dd6a1c1c 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -1669,10 +1669,6 @@ static void uvc_delete(struct uvc_device *dev)
#ifdef CONFIG_MEDIA_CONTROLLER
uvc_mc_cleanup_entity(entity);
#endif
- if (entity->vdev) {
- video_device_release(entity->vdev);
- entity->vdev = NULL;
- }
kfree(entity);
}
@@ -1717,11 +1713,10 @@ static void uvc_unregister_video(struct uvc_device *dev)
atomic_inc(&dev->nstreams);
list_for_each_entry(stream, &dev->streams, list) {
- if (stream->vdev == NULL)
+ if (!video_is_registered(&stream->vdev))
continue;
- video_unregister_device(stream->vdev);
- stream->vdev = NULL;
+ video_unregister_device(&stream->vdev);
uvc_debugfs_cleanup_stream(stream);
}
@@ -1736,7 +1731,7 @@ static void uvc_unregister_video(struct uvc_device *dev)
static int uvc_register_video(struct uvc_device *dev,
struct uvc_streaming *stream)
{
- struct video_device *vdev;
+ struct video_device *vdev = &stream->vdev;
int ret;
/* Initialize the video buffers queue. */
@@ -1757,12 +1752,6 @@ static int uvc_register_video(struct uvc_device *dev,
uvc_debugfs_init_stream(stream);
/* Register the device with V4L. */
- vdev = video_device_alloc();
- if (vdev == NULL) {
- uvc_printk(KERN_ERR, "Failed to allocate video device (%d).\n",
- ret);
- return -ENOMEM;
- }
/* We already hold a reference to dev->udev. The video device will be
* unregistered before the reference is released, so we don't need to
@@ -1780,15 +1769,12 @@ static int uvc_register_video(struct uvc_device *dev,
/* Set the driver data before calling video_register_device, otherwise
* uvc_v4l2_open might race us.
*/
- stream->vdev = vdev;
video_set_drvdata(vdev, stream);
ret = video_register_device(vdev, VFL_TYPE_GRABBER, -1);
if (ret < 0) {
uvc_printk(KERN_ERR, "Failed to register video device (%d).\n",
ret);
- stream->vdev = NULL;
- video_device_release(vdev);
return ret;
}
@@ -1827,7 +1813,7 @@ static int uvc_register_terms(struct uvc_device *dev,
if (ret < 0)
return ret;
- term->vdev = stream->vdev;
+ term->vdev = &stream->vdev;
}
return 0;
@@ -2461,6 +2447,14 @@ static struct usb_device_id uvc_ids[] = {
.bInterfaceProtocol = 0,
.driver_info = UVC_QUIRK_PROBE_MINMAX
| UVC_QUIRK_PROBE_EXTRAFIELDS },
+ /* Aveo Technology USB 2.0 Camera (Tasco USB Microscope) */
+ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE
+ | USB_DEVICE_ID_MATCH_INT_INFO,
+ .idVendor = 0x1871,
+ .idProduct = 0x0516,
+ .bInterfaceClass = USB_CLASS_VENDOR_SPEC,
+ .bInterfaceSubClass = 1,
+ .bInterfaceProtocol = 0 },
/* Ecamm Pico iMage */
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE
| USB_DEVICE_ID_MATCH_INT_INFO,