tree 0611d07d624ad794b4599d2cd2868bfecc497db6
parent ebd004e4edd5628617c0faed11162b8a095ad852
author Chen Gang <gang.chen@asianux.com> 1366650774 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1366699175 +1000

powerpc/pseries/lparcfg: Fix possible overflow are more than 1026

need set '\0' for 'local_buffer'.

SPLPAR_MAXLENGTH is 1026, RTAS_DATA_BUF_SIZE is 4096. so the contents of
rtas_data_buf may truncated in memcpy.

if contents are really truncated.
  the splpar_strlen is more than 1026. the next while loop checking will
  not find the end of buffer. that will cause memory access violation.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>