Commit-ID: f957a5308dbbdf67aa4f8ac3233a61e802bd2373 Gitweb: http://git.kernel.org/tip/f957a5308dbbdf67aa4f8ac3233a61e802bd2373 Author: Jiri Olsa <jo...@kernel.org> AuthorDate: Mon, 10 Oct 2016 09:56:32 +0200 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Thu, 13 Oct 2016 11:12:29 -0300
perf header: Set nr_numa_nodes only when we parsed all the data Sukadev reported segfault on releasing perf env's numa data. It's due to nr_numa_nodes being set no matter if the numa data gets parsed properly. The perf_env__exit crash the on releasing non existed data. Setting nr_numa_nodes only when data are parsed out properly. Signed-off-by: Jiri Olsa <jo...@kernel.org> Reported-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Wang Nan <wangn...@huawei.com> Link: http://lkml.kernel.org/n/tip-dt9c0zgkt4hybn2cr4xia...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/header.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 85dd0db..2f3eded 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -1895,7 +1895,6 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse if (ph->needs_swap) nr = bswap_32(nr); - ph->env.nr_numa_nodes = nr; nodes = zalloc(sizeof(*nodes) * nr); if (!nodes) return -ENOMEM; @@ -1932,6 +1931,7 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse free(str); } + ph->env.nr_numa_nodes = nr; ph->env.numa_nodes = nodes; return 0;
