backend: avoid adding NULL backend in attempt_backend_by_name()
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@ -277,6 +277,9 @@ static bool attempt_backend_by_name(struct wl_display *display,
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wlr_log(WLR_ERROR, "unrecognized backend '%s'", name);
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return false;
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}
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if (backend == NULL) {
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return false;
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}
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return wlr_multi_backend_add(multi, backend);
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}
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