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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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4
tools/perf/util/db-export.c
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@ -34,7 +34,7 @@ static int db_export__deferred(struct db_export *dbe)
de = list_entry(dbe->deferred.next, struct deferred_export,
node);
err = dbe->export_comm(dbe, de->comm);
list_del(&de->node);
list_del_init(&de->node);
free(de);
if (err)
return err;
@ -50,7 +50,7 @@ static void db_export__free_deferred(struct db_export *dbe)
while (!list_empty(&dbe->deferred)) {
de = list_entry(dbe->deferred.next, struct deferred_export,
node);
list_del(&de->node);
list_del_init(&de->node);
free(de);
}
}