QemuOpts: change opt->name|str from (const char *) to (char *)

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.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Leandro Dorileo <l@dorileo.org>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/util/qemu-option.c b/util/qemu-option.c
index 5af39a2..d4fd7b5 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);
 }