perf stat: Fix crash with --per-node --metric-only in CSV mode

The following command will get segfault due to missing aggr_header_csv
for AGGR_NODE:

  $ sudo perf stat -a --per-node -x, --metric-only true

Committer testing:

Before this patch:

  # perf stat -a --per-node -x, --metric-only true
  Segmentation fault (core dumped)
  #

After:

  # gdb perf
  -bash: gdb: command not found
  # perf stat -a --per-node -x, --metric-only true
  node,Ghz,frontend cycles idle,backend cycles idle,insn per cycle,branch-misses of all branches,
  N0,32,0.335,2.10,0.65,0.69,0.03,1.92,
  #

Fixes: 86895b480a2f10c7 ("perf stat: Add --per-node agregation support")
Signed-off-by: Namhyung Kim <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Xing Zhengjun <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

0 files changed, 0 insertions, 0 deletions