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Subject: media: Revert "media: uvcvideo: Set unique vdev name based in type" Author: Ricardo Ribalda ribalda@chromium.org Date: Tue Dec 7 01:38:37 2021 +0100

A lot of userspace depends on a descriptive name for vdev. Without this patch, users have a hard time figuring out which camera shall they use for their video conferencing.

This reverts commit e3f60e7e1a2b451f538f9926763432249bcf39c4.

Link: https://lore.kernel.org/linux-media/20211207003840.1212374-2-ribalda@chromiu... Cc: stable@vger.kernel.org Fixes: e3f60e7e1a2b ("media: uvcvideo: Set unique vdev name based in type") Reported-by: Nicolas Dufresne nicolas@ndufresne.ca Signed-off-by: Ricardo Ribalda ribalda@chromium.org Reviewed-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Reviewed-by: Hans Verkuil hverkuil-cisco@xs4all.nl Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org

drivers/media/usb/uvc/uvc_driver.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-)

---

diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 57152648d8ae..5f394d4efc21 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -2195,7 +2195,6 @@ int uvc_register_video_device(struct uvc_device *dev, const struct v4l2_file_operations *fops, const struct v4l2_ioctl_ops *ioctl_ops) { - const char *name; int ret;

/* Initialize the video buffers queue. */ @@ -2224,20 +2223,16 @@ int uvc_register_video_device(struct uvc_device *dev, case V4L2_BUF_TYPE_VIDEO_CAPTURE: default: vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING; - name = "Video Capture"; break; case V4L2_BUF_TYPE_VIDEO_OUTPUT: vdev->device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; - name = "Video Output"; break; case V4L2_BUF_TYPE_META_CAPTURE: vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING; - name = "Metadata"; break; }

- snprintf(vdev->name, sizeof(vdev->name), "%s %u", name, - stream->header.bTerminalLink); + strscpy(vdev->name, dev->name, sizeof(vdev->name));

/* * Set the driver data before calling video_register_device, otherwise