This fixes a memleak if read_kuki_chunk is executed more than once.
Reviewed-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
(cherry picked from commit cb7c4f73)
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>