Hans discovered a bug in the error handling of uvc_ctrl_commit(), lets fix it. It has been tested with v4l2-compliance -d /dev/video0 Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx> --- Ricardo Ribalda (3): media: uvcvideo: Return the number of processed controls media: uvcvideo: Do not send events for not changed controls media: uvcvideo: Rollback non processed entities on error drivers/media/usb/uvc/uvc_ctrl.c | 54 +++++++++++++++++++++++++++++++--------- 1 file changed, 42 insertions(+), 12 deletions(-) --- base-commit: 6c10d1adae82e1c8da16e7ebd2320e69f20b9d6f change-id: 20241210-uvc-data-backup-a0a76df9aee9 Best regards, -- Ricardo Ribalda <ribalda@xxxxxxxxxxxx>