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-rw-r--r--backend/backend.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/backend/backend.c b/backend/backend.c
index ed6ae2d6..9d40c54f 100644
--- a/backend/backend.c
+++ b/backend/backend.c
@@ -293,7 +293,12 @@ static struct wlr_backend *attempt_drm_backend(struct wl_display *display,
return NULL;
}
- wlr_log(WLR_INFO, "Found %zu GPUs", num_gpus);
+ if (num_gpus == 0) {
+ wlr_log(WLR_ERROR, "Found 0 GPUs, cannot create backend");
+ return NULL;
+ } else {
+ wlr_log(WLR_INFO, "Found %zu GPUs", num_gpus);
+ }
struct wlr_backend *primary_drm = NULL;
for (size_t i = 0; i < (size_t)num_gpus; ++i) {
@@ -310,6 +315,10 @@ static struct wlr_backend *attempt_drm_backend(struct wl_display *display,
wlr_multi_backend_add(backend, drm);
}
+ if (!primary_drm) {
+ wlr_log(WLR_ERROR, "Could not successfully create backend on any GPU");
+ return NULL;
+ }
return ensure_backend_renderer_and_allocator(primary_drm);
}