Fix decompress_unxz.c API.

Previously only the features that were needed by the
code currently in Linux were implemented. However,
<linux/decompress/generic.h> requires a few other
features too, so implement them for consistency with
other decompressors:
  - Callback-to-buffer mode
  - Ability to use caller-given input buffer with fill()

Thanks to Phillip Lougher.
2 files changed
tree: 2b02fc082e5f68668649ea3bb62b72424eb719fe
  1. linux/
  2. userspace/
  3. .gitignore
  4. COPYING
  5. README