On Thu, Apr 03, 2014 at 05:54:22PM +0800, Chunyan Liu wrote:
> qemu_opt_del() already assumes that all QemuOpt instances contain
> malloc'd name and value; but it had to cast away const because
> opts_start_struct() was doing its own thing and using static storage
> instead. By using the correct type and malloced strings everywhere, the
> usage of this struct becomes clearer.
>
> Signed-off-by: Chunyan Liu <cy...@suse.com>
Reviewed-by: Leandro Dorileo <l...@dorileo.org>
> ---
> Changes:
> * Add explaination to this change.
> * Remove extra space before char *name, char *str;
>
> include/qemu/option_int.h | 4 ++--
> qapi/opts-visitor.c | 10 +++++++---
> util/qemu-option.c | 4 ++--
> 3 files changed, 11 insertions(+), 7 deletions(-)
>
> diff --git a/include/qemu/option_int.h b/include/qemu/option_int.h
> index 8212fa4..6432c1a 100644
> --- a/include/qemu/option_int.h
> +++ b/include/qemu/option_int.h
> @@ -30,8 +30,8 @@
> #include "qemu/error-report.h"
>
> struct QemuOpt {
> - const char *name;
> - const char *str;
> + char *name;
> + char *str;
>
> const QemuOptDesc *desc;
> union {
> diff --git a/qapi/opts-visitor.c b/qapi/opts-visitor.c
> index 5d830a2..7a64f4e 100644
> --- a/qapi/opts-visitor.c
> +++ b/qapi/opts-visitor.c
> @@ -143,8 +143,8 @@ opts_start_struct(Visitor *v, void **obj, const char
> *kind,
> if (ov->opts_root->id != NULL) {
> ov->fake_id_opt = g_malloc0(sizeof *ov->fake_id_opt);
>
> - ov->fake_id_opt->name = "id";
> - ov->fake_id_opt->str = ov->opts_root->id;
> + ov->fake_id_opt->name = g_strdup("id");
> + ov->fake_id_opt->str = g_strdup(ov->opts_root->id);
> opts_visitor_insert(ov->unprocessed_opts, ov->fake_id_opt);
> }
> }
> @@ -177,7 +177,11 @@ opts_end_struct(Visitor *v, Error **errp)
> }
> g_hash_table_destroy(ov->unprocessed_opts);
> ov->unprocessed_opts = NULL;
> - g_free(ov->fake_id_opt);
> + if (ov->fake_id_opt) {
> + g_free(ov->fake_id_opt->name);
> + g_free(ov->fake_id_opt->str);
> + g_free(ov->fake_id_opt);
> + }
> ov->fake_id_opt = NULL;
> }
>
> diff --git a/util/qemu-option.c b/util/qemu-option.c
> index d5e80da..eab5102 100644
> --- a/util/qemu-option.c
> +++ b/util/qemu-option.c
> @@ -664,8 +664,8 @@ static void qemu_opt_parse(QemuOpt *opt, Error **errp)
> static void qemu_opt_del(QemuOpt *opt)
> {
> QTAILQ_REMOVE(&opt->opts->head, opt, next);
> - g_free((/* !const */ char*)opt->name);
> - g_free((/* !const */ char*)opt->str);
> + g_free(opt->name);
> + g_free(opt->str);
> g_free(opt);
> }
>
> --
> 1.7.12.4
>
