perf session: Fix crash with invalid CPU list
commit 5d67be9
added the option to specify a range of CPUs of interest,
but does not catch an invalid CPU list:
$ perf script -c foo
Segmentation fault (core dumped)
Cc: Anton Blanchard <anton@samba.org>
Link: http://lkml.kernel.org/r/1321206327-5881-1-git-send-email-dsahern@gmail.com
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -1333,6 +1333,10 @@ int perf_session__cpu_bitmap(struct perf_session *session,
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}
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}
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map = cpu_map__new(cpu_list);
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map = cpu_map__new(cpu_list);
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if (map == NULL) {
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pr_err("Invalid cpu_list\n");
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return -1;
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}
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for (i = 0; i < map->nr; i++) {
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for (i = 0; i < map->nr; i++) {
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int cpu = map->map[i];
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int cpu = map->map[i];
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