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gcc with -Wextra complains about an ordered pointer comparison: target-s390x/helper.c:660:27: warning: ordered comparison of pointer with integer zero [-Wextra] Obviously the index was missing in the code. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>