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GET /api/1.1/patches/2222133/?format=api
{ "id": 2222133, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2222133/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260410-qemu-vnc-v2-44-231416f76dc3@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260410-qemu-vnc-v2-44-231416f76dc3@redhat.com>", "date": "2026-04-10T19:19:06", "name": "[v2,44/67] ui/vnc: fix vnc_display_init() leak on failure", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "59b99f404a01008487ab0ee3b643c6cd981d20f1", "submitter": { "id": 66774, "url": "http://patchwork.ozlabs.org/api/1.1/people/66774/?format=api", "name": "Marc-André Lureau", "email": "marcandre.lureau@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260410-qemu-vnc-v2-44-231416f76dc3@redhat.com/mbox/", "series": [ { "id": 499494, "url": "http://patchwork.ozlabs.org/api/1.1/series/499494/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499494", "date": "2026-04-10T19:18:23", "name": "ui: add standalone VNC server over D-Bus", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/499494/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222133/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222133/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=jHuL2ZVl;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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a=openpgp;\n fpr=87A9BD933F87C606D276F62DDAE8E10975969CE5", "X-Scanned-By": "MIMEDefang 3.4.1 on 10.30.177.4", "Received-SPF": "pass client-ip=170.10.129.124;\n envelope-from=marcandre.lureau@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "-25", "X-Spam_score": "-2.6", "X-Spam_bar": "--", "X-Spam_report": "(-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.54,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Do not add the display state to the vnc list, if the initialization\nfailed. Add vnc_display_free(), to free the display state and associated\ndata in such case. The function is meant to be public and reused in the\nfollowing changes.\n\nSigned-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>\n---\n ui/vnc.c | 33 +++++++++++++++++++++++++++++----\n 1 file changed, 29 insertions(+), 4 deletions(-)", "diff": "diff --git a/ui/vnc.c b/ui/vnc.c\nindex 522d4d8fb88..512e11d687e 100644\n--- a/ui/vnc.c\n+++ b/ui/vnc.c\n@@ -3422,6 +3422,8 @@ static void vmstate_change_handler(void *opaque, bool running, RunState state)\n update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_BASE);\n }\n \n+static void vnc_display_free(VncDisplay *vd);\n+\n void vnc_display_init(const char *id, Error **errp)\n {\n VncDisplay *vd;\n@@ -3431,8 +3433,9 @@ void vnc_display_init(const char *id, Error **errp)\n }\n vd = g_malloc0(sizeof(*vd));\n \n+ qemu_mutex_init(&vd->mutex);\n vd->id = g_strdup(id);\n- QTAILQ_INSERT_TAIL(&vnc_displays, vd, next);\n+ vd->dcl.ops = &dcl_ops;\n \n QTAILQ_INIT(&vd->clients);\n vd->expires = TIME_MAX;\n@@ -3446,22 +3449,22 @@ void vnc_display_init(const char *id, Error **errp)\n }\n \n if (!vd->kbd_layout) {\n+ vnc_display_free(vd);\n return;\n }\n \n vd->share_policy = VNC_SHARE_POLICY_ALLOW_EXCLUSIVE;\n vd->connections_limit = 32;\n \n- qemu_mutex_init(&vd->mutex);\n vnc_start_worker_thread();\n \n- vd->dcl.ops = &dcl_ops;\n register_displaychangelistener(&vd->dcl);\n vd->kbd = qkbd_state_init(vd->dcl.con);\n vd->vmstate_handler_entry = qemu_add_vm_change_state_handler(\n &vmstate_change_handler, vd);\n-}\n \n+ QTAILQ_INSERT_TAIL(&vnc_displays, vd, next);\n+}\n \n static void vnc_display_close(VncDisplay *vd)\n {\n@@ -3505,6 +3508,28 @@ static void vnc_display_close(VncDisplay *vd)\n #endif\n }\n \n+static void vnc_display_free(VncDisplay *vd)\n+{\n+ if (!vd) {\n+ return;\n+ }\n+\n+ assert(QTAILQ_EMPTY(&vd->clients));\n+\n+ vnc_display_close(vd);\n+ unregister_displaychangelistener(&vd->dcl);\n+ qkbd_state_free(vd->kbd);\n+ qemu_del_vm_change_state_handler(vd->vmstate_handler_entry);\n+ kbd_layout_free(vd->kbd_layout);\n+ qemu_mutex_destroy(&vd->mutex);\n+ if (QTAILQ_IN_USE(vd, next)) {\n+ QTAILQ_REMOVE(&vnc_displays, vd, next);\n+ }\n+ g_free(vd->id);\n+ g_free(vd);\n+}\n+\n+\n int vnc_display_password(const char *id, const char *password, Error **errp)\n {\n VncDisplay *vd = vnc_display_find(id);\n", "prefixes": [ "v2", "44/67" ] }