[PATCH] qemu-config: use qemu_opts_from_qdict

[Paolo Bonzini <pbonzini@redhat.com>]

Using qemu_opts_absorb_qdict, and then checking for any leftover options,
is redundant because there is already a function that does the same,
qemu_opts_from_qdict.  qemu_opts_from_qdict consumes the whole dictionary
and therefore can just return an error message if an option fails to validate.

This also fixes a bug, because the "id" entry was retrieved in
qemu_config_do_parse and then left there by qemu_opts_absorb_qdict.
As a result, it was reported as an unrecognized option.

Reported-by: Markus Armbruster <armbru@redhat.com>
Fixes: 3770141139 ("qemu-config: parse configuration files to a QDict")
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 util/qemu-config.c | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/util/qemu-config.c b/util/qemu-config.c
index 374f3bc460..84ee6dc4ea 100644
--- a/util/qemu-config.c
+++ b/util/qemu-config.c
@@ -429,29 +429,14 @@ out:
 void qemu_config_do_parse(const char *group, QDict *qdict, void *opaque, Error **errp)
 {
     QemuOptsList **lists = opaque;
-    const char *id = qdict_get_try_str(qdict, "id");
     QemuOptsList *list;
-    QemuOpts *opts;
-    const QDictEntry *unrecognized;
 
     list = find_list(lists, group, errp);
     if (!list) {
         return;
     }
 
-    opts = qemu_opts_create(list, id, 1, errp);
-    if (!opts) {
-        return;
-    }
-    if (!qemu_opts_absorb_qdict(opts, qdict, errp)) {
-        qemu_opts_del(opts);
-        return;
-    }
-    unrecognized = qdict_first(qdict);
-    if (unrecognized) {
-        error_setg(errp, QERR_INVALID_PARAMETER, unrecognized->key);
-        qemu_opts_del(opts);
-    }
+    qemu_opts_from_qdict(list, qdict, errp);
 }
 
 int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname, Error **errp)
-- 
2.31.1