With this patch the floppy driver creates the usual symlink in sysfs to
the physical device backing the block device:

  $tree /sys/block/
  /sys/block/
  |-- fd0
  |   |-- dev
  |   |-- device -> ../../devices/platform/floppy0
  ...
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>