From 7019738d4c9ce49b8fad09e9774393ad127b835d Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Fri, 29 Jan 2016 06:48:42 -0700 Subject: [PATCH] hmp: Drop pointless allocation during qapi visit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The qapi visitor contract allows us to visit a virtual structure, where we don't have any corresponding qapi struct. Most such uses pass NULL for @obj; but these two callers were passing a dummy pointer, which then gets allocated to heap memory but then immediately freed without use. Clean this up to suppress unwanted allocation, like we do elsewhere. Signed-off-by: Eric Blake Reviewed-by: Marc-André Lureau Message-Id: <1454075341-13658-7-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster --- hmp.c | 4 +--- vl.c | 4 +--- 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/hmp.c b/hmp.c index cb03a156d2..6071a0b85b 100644 --- a/hmp.c +++ b/hmp.c @@ -1657,7 +1657,6 @@ void hmp_object_add(Monitor *mon, const QDict *qdict) QemuOpts *opts; char *type = NULL; char *id = NULL; - void *dummy = NULL; OptsVisitor *ov; QDict *pdict; @@ -1669,7 +1668,7 @@ void hmp_object_add(Monitor *mon, const QDict *qdict) ov = opts_visitor_new(opts); pdict = qdict_clone_shallow(qdict); - visit_start_struct(opts_get_visitor(ov), &dummy, NULL, NULL, 0, &err); + visit_start_struct(opts_get_visitor(ov), NULL, NULL, NULL, 0, &err); if (err) { goto out_clean; } @@ -1701,7 +1700,6 @@ out_clean: qemu_opts_del(opts); g_free(id); g_free(type); - g_free(dummy); out: hmp_handle_error(mon, &err); diff --git a/vl.c b/vl.c index c581e3978b..db51ebd2a6 100644 --- a/vl.c +++ b/vl.c @@ -2821,7 +2821,6 @@ static int object_create(void *opaque, QemuOpts *opts, Error **errp) Error *err = NULL; char *type = NULL; char *id = NULL; - void *dummy = NULL; OptsVisitor *ov; QDict *pdict; bool (*type_predicate)(const char *) = opaque; @@ -2829,7 +2828,7 @@ static int object_create(void *opaque, QemuOpts *opts, Error **errp) ov = opts_visitor_new(opts); pdict = qemu_opts_to_qdict(opts, NULL); - visit_start_struct(opts_get_visitor(ov), &dummy, NULL, NULL, 0, &err); + visit_start_struct(opts_get_visitor(ov), NULL, NULL, NULL, 0, &err); if (err) { goto out; } @@ -2864,7 +2863,6 @@ out: QDECREF(pdict); g_free(id); g_free(type); - g_free(dummy); if (err) { error_report_err(err); return -1;