Merge commit '94bb1ce882a12b6d7a1fa32715a68121b39ee838'

* commit '94bb1ce882a12b6d7a1fa32715a68121b39ee838':
  alsdec: check sample pointer range in revert_channel_correlation

Conflicts:
	libavcodec/alsdec.c

See: afc7748d1f6abc4b3b1cc957b0fa6941837db3d0
Merged-by: Michael Niedermayer <michaelni@gmx.at>