>From GLib "Rules for use of GError": A GError* must be initialized to NULL before passing its address to a function that can report errors.
dbus_update_gl_cb() seemingly violates this rule: it passes &err to qemu_dbus_display1_listener_call_update_dmabuf_finish() and to qemu_dbus_display1_listener_win32_d3d11_call_update_texture2d_finish() without clearing it in between. Harmless, because the first call is guarded by #ifdef CONFIG_GBM, the second by #ifdef WIN32, and the two are mutually exclusive. I think. Clean this up to be obviously correct. Cc: Marc-André Lureau <marcandre.lur...@redhat.com> Signed-off-by: Markus Armbruster <arm...@redhat.com> --- ui/dbus-listener.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/ui/dbus-listener.c b/ui/dbus-listener.c index 42875b8eed..09d7a319b1 100644 --- a/ui/dbus-listener.c +++ b/ui/dbus-listener.c @@ -221,18 +221,21 @@ static void dbus_update_gl_cb(GObject *source_object, #ifdef CONFIG_GBM success = qemu_dbus_display1_listener_call_update_dmabuf_finish( ddl->proxy, res, &err); + if (!success) { + error_report("Failed to call update: %s", err->message); + } #endif #ifdef WIN32 success = qemu_dbus_display1_listener_win32_d3d11_call_update_texture2d_finish( ddl->d3d11_proxy, res, &err); - d3d_texture2d_acquire0(ddl->d3d_texture, &error_warn); -#endif - if (!success) { error_report("Failed to call update: %s", err->message); } + d3d_texture2d_acquire0(ddl->d3d_texture, &error_warn); +#endif + graphic_hw_gl_block(ddl->dcl.con, false); g_object_unref(ddl); } -- 2.49.0