kpartx not removing loop devices while deleting an image in Suse linux 12.4 and greater version

I am trying to mount a backup session of a linux system to browse files and restore files. In order to that I need to mount images of the source. Using command "kpartx -av /imagename" I am doing it successfully. Also this command bind the image with some loop device/s internally. when I am trying to umount the session using "kpartx -d /imagename" command, the loop devices getting deleted in case of suse version 11 but same thing is not happening for suse version greater than 12.4.

is there any requirement to modify udev rules for suse versions greater than 12.4 ( compared to suse linux 11 )to delete loop devices associated with image ( which I am trying to delete through kpartx -d command ) ?