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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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6
tools/perf/util/symbol-elf.c
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@@ -1478,7 +1478,7 @@ static void kcore_copy__free_phdrs(struct kcore_copy_info *kci)
struct phdr_data *p, *tmp;
list_for_each_entry_safe(p, tmp, &kci->phdrs, node) {
list_del(&p->node);
list_del_init(&p->node);
free(p);
}
}
@@ -1501,7 +1501,7 @@ static void kcore_copy__free_syms(struct kcore_copy_info *kci)
struct sym_data *s, *tmp;
list_for_each_entry_safe(s, tmp, &kci->syms, node) {
list_del(&s->node);
list_del_init(&s->node);
free(s);
}
}
@@ -2252,7 +2252,7 @@ int cleanup_sdt_note_list(struct list_head *sdt_notes)
int nr_free = 0;
list_for_each_entry_safe(pos, tmp, sdt_notes, note_list) {
list_del(&pos->note_list);
list_del_init(&pos->note_list);
zfree(&pos->name);
zfree(&pos->provider);
free(pos);