1 files changed, 73 insertions, 0 deletions
diff --git a/kde-plasma/kwayland-server/files/kwayland-server-5.24.4-fix-race-in-wp_drm_lease_v1.patch b/kde-plasma/kwayland-server/files/kwayland-server-5.24.4-fix-race-in-wp_drm_lease_v1.patch
new file mode 100644
index 000000000000..1799a711b472
--- /dev/null
+++ b/kde-plasma/kwayland-server/files/kwayland-server-5.24.4-fix-race-in-wp_drm_lease_v1.patch
@@ -0,0 +1,73 @@
+From dc09ce85f00b3a790e2817888067c3826280dd8e Mon Sep 17 00:00:00 2001
+From: Weng Xuetian <wengxt@gmail.com>
+Date: Sat, 16 Apr 2022 00:01:12 -0700
+Subject: [PATCH] Fix race in wp_drm_lease_v1.
+
+Basically this is a well known issue in wayland for globals. If bind
+comes after destroyed, it will raise a invalid global error. The common
+practice is to delay the destroy of global. Similar technique is also
+applied to wl_output.
+
+CCBUG: 452435
+(cherry picked from commit cdc9dcfb0a1f0445c46ee2cefa114329a2408555)
+---
+ src/server/drmleasedevice_v1_interface.cpp | 14 +++++---------
+ src/server/drmleasedevice_v1_interface_p.h |  2 +-
+ 2 files changed, 6 insertions(+), 10 deletions(-)
+
+diff --git a/src/server/drmleasedevice_v1_interface.cpp b/src/server/drmleasedevice_v1_interface.cpp
+index bffd22cd..7e338022 100644
+--- a/src/server/drmleasedevice_v1_interface.cpp
++++ b/src/server/drmleasedevice_v1_interface.cpp
+@@ -84,10 +84,6 @@ void DrmLeaseDeviceV1InterfacePrivate::remove()
+         request->connectors.clear();
+     }
+     globalRemove();
+-    removed = true;
+-    if (resourceMap().isEmpty()) {
+-        delete this;
+-    }
+ }
+ 
+ void DrmLeaseDeviceV1InterfacePrivate::registerConnector(DrmLeaseConnectorV1Interface *connector)
+@@ -144,6 +140,9 @@ void DrmLeaseDeviceV1InterfacePrivate::wp_drm_lease_device_v1_release(Resource *
+ 
+ void DrmLeaseDeviceV1InterfacePrivate::wp_drm_lease_device_v1_bind_resource(Resource *resource)
+ {
++    if (isGlobalRemoved()) {
++        return;
++    }
+     if (!hasDrmMaster) {
+         pendingFds << resource->handle;
+         return;
+@@ -161,12 +160,9 @@ void DrmLeaseDeviceV1InterfacePrivate::wp_drm_lease_device_v1_bind_resource(Reso
+     }
+ }
+ 
+-void DrmLeaseDeviceV1InterfacePrivate::wp_drm_lease_device_v1_destroy_resource(Resource *resource)
++void DrmLeaseDeviceV1InterfacePrivate::wp_drm_lease_device_v1_destroy_global()
+ {
+-    Q_UNUSED(resource)
+-    if (removed && resourceMap().isEmpty()) {
+-        delete this;
+-    }
++    delete this;
+ }
+ 
+ 
+diff --git a/src/server/drmleasedevice_v1_interface_p.h b/src/server/drmleasedevice_v1_interface_p.h
+index 4bef36e4..085aac85 100644
+--- a/src/server/drmleasedevice_v1_interface_p.h
++++ b/src/server/drmleasedevice_v1_interface_p.h
+@@ -44,7 +44,7 @@ protected:
+     void wp_drm_lease_device_v1_create_lease_request(Resource *resource, uint32_t id) override;
+     void wp_drm_lease_device_v1_release(Resource *resource) override;
+     void wp_drm_lease_device_v1_bind_resource(Resource *resource) override;
+-    void wp_drm_lease_device_v1_destroy_resource(Resource *resource) override;
++    void wp_drm_lease_device_v1_destroy_global() override;
+ };
+ 
+ class DrmLeaseConnectorV1InterfacePrivate : public QObject, public QtWaylandServer::wp_drm_lease_connector_v1
+-- 
+GitLab
+