[PATCH 2/4] vl: Free accel_list in configure_accelerators

[Aleksandar Markovic <aleksandar.m.mail@gmail.com>]

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On Thursday, January 9, 2020, Laurent Vivier <lvivier@redhat.com> wrote:

> On 09/01/2020 09:18, Thomas Huth wrote:
> > On 09/01/2020 03.17, Richard Henderson wrote:
> >> We allocate the list with g_strsplit, so free it too.
> >> This freeing was lost during one of the rearrangements.
> >>
> >> Fixes: 6f6e1698a68c
> >> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> >> ---
> >>  vl.c | 4 +++-
> >>  1 file changed, 3 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/vl.c b/vl.c
> >> index be79b03c1a..c9329fe699 100644
> >> --- a/vl.c
> >> +++ b/vl.c
> >> @@ -2748,7 +2748,6 @@ static int do_configure_accelerator(void *opaque,
> QemuOpts *opts, Error **errp)
> >>  static void configure_accelerators(const char *progname)
> >>  {
> >>      const char *accel;
> >> -    char **accel_list, **tmp;
> >>      bool init_failed = false;
> >>
> >>      qemu_opts_foreach(qemu_find_opts("icount"),
> >> @@ -2756,6 +2755,8 @@ static void configure_accelerators(const char
> *progname)
> >>
> >>      accel = qemu_opt_get(qemu_get_machine_opts(), "accel");
> >>      if (QTAILQ_EMPTY(&qemu_accel_opts.head)) {
> >> +        char **accel_list, **tmp;
> >> +
> >>          if (accel == NULL) {
> >>              /* Select the default accelerator */
> >>              if (!accel_find("tcg") && !accel_find("kvm")) {
> >> @@ -2787,6 +2788,7 @@ static void configure_accelerators(const char
> *progname)
> >>                  error_report("invalid accelerator %s", *tmp);
> >>              }
> >>          }
> >> +        g_strfreev(accel_list);
> >>      } else {
> >>          if (accel != NULL) {
> >>              error_report("The -accel and \"-machine accel=\" options
> are incompatible");
> >>
> >
> > FYI, a fix for this is already part of Laurent's "Trivial branch
> > patches" PULL request from yesterday.
>
> https://patchew.org/QEMU/20200108160233.991134-1-laurent@
> vivier.eu/20200108160233.991134-6-laurent@vivier.eu/
>
>
If this (from Laurent's PR) patch is merged, Richard could transform his
patch into "vl: Fix the scope of variables accel_list and tmp in
configure_accelerator()" in v2.

Whatever happens:

Reviewed by: Aleksandar Markovic <amarkovic@wavecomp.com>


> Thanks,
> Laurent
>
>
>

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