Simplify input length check in lzs_decompress() loop
Simplify input length check in lzs_decompress() loop

We don't need to do the expensive and precise calculation; just checking
for (srclen < 2) is always good enough.

Roughly 10% performance win.

Signed-off-by: David Woodhouse <b460d66aaf00c296a3db1c1d9eeafc081d5f7d70@intel.com>

mveplus/openconnect-client,brandt/openconnect,mtmiller/openconnect,mtmiller/openconnect,liiir1985/openconnect,mveplus/openconnect-client,matlockx/openconnect,matlockx/openconnect,liiir1985/openconnect,mveplus/openconnect-client,atyndall/openconnect,matlockx/openconnect,atyndall/openconnect,nmav/openconnect-mine,lins05/openconnect,brandt/openconnect,mveplus/openconnect-client,liiir1985/openconnect,don-johnny/openconnect,lins05/openconnect,mtmiller/openconnect,matlockx/openconnect,cernekee/openconnect,liiir1985/openconnect,lins05/openconnect,atyndall/openconnect,cernekee/openconnect,nmav/openconnect-mine,nmav/openconnect-mine,nmav/openconnect-mine,don-johnny/openconnect,don-johnny/openconnect,mtmiller/openconnect,cernekee/openconnect,don-johnny/openconnect,atyndall/openconnect,cernekee/openconnect,brandt/openconnect,lins05/openconnect,brandt/openconnect