tree fdd2c8f93ef829138eab5f76391851cd49cbe9cb
parent 61a590fa67ac3c897e7c21fd75a5c85a4671b384
author Krzysztof Kolasa <kkolasa@winsoft.pl> 1430711939 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1432493789 -0700

lz4: fix system halt at boot kernel on x86_64

Sometimes, on x86_64, decompression fails with the following
error:

Decompressing Linux...

Decoding failed

 -- System halted

This condition is not needed for a 64bit kernel(from commit d5e7caf):

if( ... ||
    (op + COPYLENGTH) > oend)
    goto _output_error

macro LZ4_SECURE_COPY() tests op and does not copy any data
when op exceeds the value.

added by analogy to lz4_uncompress_unknownoutputsize(...)

Signed-off-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Tested-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Tested-by: Caleb Jorden <cjorden@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>