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xwm_get_render_format: check NULL return value

This commit is contained in:
Dominique Martinet 2017-12-29 20:31:04 +01:00
parent 41649a1f9a
commit a6fb4b007b
1 changed files with 4 additions and 0 deletions
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4
xwayland/xwm.c
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@ -1254,6 +1254,10 @@ static void xwm_get_render_format(struct wlr_xwm *xwm) {
xcb_render_query_pict_formats(xwm->xcb_conn);
xcb_render_query_pict_formats_reply_t *reply =
xcb_render_query_pict_formats_reply(xwm->xcb_conn, cookie, NULL);
if (!reply) {
wlr_log(L_ERROR, "Did not get any reply from xcb_rrender_query_pict_formats");
return;
}
xcb_render_pictforminfo_iterator_t iter =
xcb_render_query_pict_formats_formats_iterator(reply);
xcb_render_pictforminfo_t *format = NULL;