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-rw-r--r--util/qemu-option.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/util/qemu-option.c b/util/qemu-option.c
index 7a1552a512..4ebdc4c33c 100644
--- a/util/qemu-option.c
+++ b/util/qemu-option.c
@@ -928,6 +928,15 @@ static QemuOpts *opts_parse(QemuOptsList *list, const char *params,
get_opt_value(value, sizeof(value), p+4);
id = value;
}
+
+ /*
+ * This code doesn't work for defaults && !list->merge_lists: when
+ * params has no id=, and list has an element with !opts->id, it
+ * appends a new element instead of returning the existing opts.
+ * However, we got no use for this case. Guard against possible
+ * (if unlikely) future misuse:
+ */
+ assert(!defaults || list->merge_lists);
opts = qemu_opts_create(list, id, !defaults, &local_err);
if (opts == NULL) {
if (error_is_set(&local_err)) {