Re: [PATCH] perf unwind: Fix uninitialized variable

Arnaldo Carvalho de Melo
2022-06-09T16:34:49Z

Em Mon, Jun 06, 2022 at 05:26:58PM -0700, Fangrui Song escreveu:
> On 2022-06-06, Ian Rogers wrote:
> > ret may be uninitialized on error goto paths.
> >
> > Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
> > Fixes: dc2cf4ca866f ("perf unwind: Fix segbase for ld.lld linked objects")
> > Signed-off-by: Ian Rogers <irogers@google.com>
>
> Thanks. Sorry for my mistake...
>
> Reviewed-by: Fangrui Song <maskray@google.com>

Thanks, applied.

- Arnaldo

> > ---
> > tools/perf/util/unwind-libunwind-local.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
> > index 37622699c91a..6e5b8cce47bf 100644
> > --- a/tools/perf/util/unwind-libunwind-local.c
> > +++ b/tools/perf/util/unwind-libunwind-local.c
> > @@ -174,7 +174,7 @@ static int elf_section_address_and_offset(int fd, const char *name, u64 *address
> > Elf *elf;
> > GElf_Ehdr ehdr;
> > GElf_Shdr shdr;
> > - int ret;
> > + int ret = -1;
> >
> > elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
> > if (elf == NULL)
> > --
> > 2.36.1.255.ge46751e96f-goog
> >

--

- Arnaldo