media: uvcvideo: Use dev->name for querycap()

Use the device name for the card name instead of vdev->name. That way
all the devices have a different name instead of the common vdev->name.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/usb/uvc/uvc_metadata.c

@@ -30,7 +30,7 @@ static int uvc_meta_v4l2_querycap(struct file *file, void *fh,
 	struct uvc_video_chain *chain = stream->chain;
 
 	strscpy(cap->driver, "uvcvideo", sizeof(cap->driver));
-	strscpy(cap->card, vfh->vdev->name, sizeof(cap->card));
+	strscpy(cap->card, stream->dev->name, sizeof(cap->card));
 	usb_make_path(stream->dev->udev, cap->bus_info, sizeof(cap->bus_info));
 	cap->capabilities = V4L2_CAP_DEVICE_CAPS | V4L2_CAP_STREAMING
 			  | chain->caps;

drivers/media/usb/uvc/uvc_v4l2.c

@@ -617,13 +617,12 @@ static int uvc_v4l2_release(struct file *file)
 static int uvc_ioctl_querycap(struct file *file, void *fh,
 			      struct v4l2_capability *cap)
 {
-	struct video_device *vdev = video_devdata(file);
 	struct uvc_fh *handle = file->private_data;
 	struct uvc_video_chain *chain = handle->chain;
 	struct uvc_streaming *stream = handle->stream;
 
 	strscpy(cap->driver, "uvcvideo", sizeof(cap->driver));
-	strscpy(cap->card, vdev->name, sizeof(cap->card));
+	strscpy(cap->card, handle->stream->dev->name, sizeof(cap->card));
 	usb_make_path(stream->dev->udev, cap->bus_info, sizeof(cap->bus_info));
 	cap->capabilities = V4L2_CAP_DEVICE_CAPS | V4L2_CAP_STREAMING
 			  | chain->caps;