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perf tools: Use list_del_init() more thorougly

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To allow for destructors to check if they're operating on a object still
in a list, and to avoid going from use after free list entries into
still valid, or even also other already removed from list entries.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-deh17ub44atyox3j90e6rksu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-07-04 12:13:46 -03:00
parent d8f9da2404
commit e56fbc9dc7
22 changed files with 38 additions and 38 deletions
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2
tools/perf/util/parse-events.c
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@ -652,7 +652,7 @@ static int add_bpf_event(const char *group, const char *event, int fd,
pr_debug("Failed to add BPF event %s:%s\n",
group, event);
list_for_each_entry_safe(evsel, tmp, &new_evsels, node) {
list_del(&evsel->node);
list_del_init(&evsel->node);
perf_evsel__delete(evsel);
}
return err;