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xwm_get_render_format: check NULL return value
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@ -1254,6 +1254,10 @@ static void xwm_get_render_format(struct wlr_xwm *xwm) {
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xcb_render_query_pict_formats(xwm->xcb_conn);
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xcb_render_query_pict_formats_reply_t *reply =
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xcb_render_query_pict_formats_reply(xwm->xcb_conn, cookie, NULL);
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if (!reply) {
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wlr_log(L_ERROR, "Did not get any reply from xcb_rrender_query_pict_formats");
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return;
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}
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xcb_render_pictforminfo_iterator_t iter =
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xcb_render_query_pict_formats_formats_iterator(reply);
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xcb_render_pictforminfo_t *format = NULL;
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