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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/annotate.c
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@@ -1586,7 +1586,7 @@ static void delete_last_nop(struct symbol *sym)
return;
}
list_del(&dl->al.node);
list_del_init(&dl->al.node);
disasm_line__free(dl);
}
}
@@ -2463,7 +2463,7 @@ void annotated_source__purge(struct annotated_source *as)
struct annotation_line *al, *n;
list_for_each_entry_safe(al, n, &as->source, node) {
list_del(&al->node);
list_del_init(&al->node);
disasm_line__free(disasm_line(al));
}
}