export-dmabuf: Keep frame->output = NULL until frame is ready
This fixes a crash that happens when a client requests a frame on a backend that does not implement export_dmabuf. An assertion fails with the message: sway: types/wlr_output.c:777: wlr_output_lock_attach_render: Assertion `output->attach_render_locks > 0' failed.
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@ -98,7 +98,6 @@ static void manager_handle_capture_output(struct wl_client *client,
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return;
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}
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frame->manager = manager;
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frame->output = output;
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wl_list_init(&frame->output_precommit.link);
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uint32_t version = wl_resource_get_version(manager_resource);
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@ -129,6 +128,8 @@ static void manager_handle_capture_output(struct wl_client *client,
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return;
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}
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frame->output = output;
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wlr_output_lock_attach_render(frame->output, true);
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if (overlay_cursor) {
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wlr_output_lock_software_cursors(frame->output, true);
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