perf symbol: Use zfree() to reduce chances of use after free

Do defensive programming by using zfree() to initialize freed pointers
to NULL, so that eventual use after free result in a NULL pointer deref
instead of more subtle behaviour.
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent b20c6308
...@@ -396,7 +396,7 @@ static bool get_ifunc_name(Elf *elf, struct dso *dso, GElf_Ehdr *ehdr, ...@@ -396,7 +396,7 @@ static bool get_ifunc_name(Elf *elf, struct dso *dso, GElf_Ehdr *ehdr,
static void exit_rel(struct rel_info *ri) static void exit_rel(struct rel_info *ri)
{ {
free(ri->sorted); zfree(&ri->sorted);
} }
static bool get_plt_sizes(struct dso *dso, GElf_Ehdr *ehdr, GElf_Shdr *shdr_plt, static bool get_plt_sizes(struct dso *dso, GElf_Ehdr *ehdr, GElf_Shdr *shdr_plt,
...@@ -460,7 +460,7 @@ struct rela_dyn_info { ...@@ -460,7 +460,7 @@ struct rela_dyn_info {
static void exit_rela_dyn(struct rela_dyn_info *di) static void exit_rela_dyn(struct rela_dyn_info *di)
{ {
free(di->sorted); zfree(&di->sorted);
} }
static int cmp_offset(const void *a, const void *b) static int cmp_offset(const void *a, const void *b)
......
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