am 49b8124a: am 17dcc5c5: Use makedev helper for device major and minor numbers

Merge commit '49b8124a1759cb8b27e0c21a1a5a54b8a81bdb19'

* commit '49b8124a1759cb8b27e0c21a1a5a54b8a81bdb19':
  Use makedev helper for device major and minor numbers