backend/headless: dup DRM FD in wlr_headless_backend_create_with_renderer
We were not dup'ing the DRM FD coming from wlr_renderer_get_drm_fd,
resulting in a double-close on backend destroy.
@@ -248,9 +248,15 @@ struct wlr_backend *wlr_headless_backend_create_with_renderer(
}
backend->has_parent_renderer = true;
- backend->drm_fd = wlr_renderer_get_drm_fd(renderer);
+ int drm_fd = wlr_renderer_get_drm_fd(renderer);
+ if (drm_fd < 0) {
+ wlr_log(WLR_ERROR, "Failed to get DRM device FD from parent renderer");
+ backend->drm_fd = -1;
+ } else {
+ backend->drm_fd = fcntl(drm_fd, F_DUPFD_CLOEXEC, 0);
if (backend->drm_fd < 0) {
- wlr_log(WLR_ERROR, "Failed to get DRM device FD from renderer");
+ wlr_log_errno(WLR_ERROR, "fcntl(F_DUPFD_CLOEXEC) failed");
+ }
}
if (!backend_init(backend, display, renderer)) {
