Fix segfault in output_render

1 files changed, 7 insertions, 4 deletions

diff --git a/sway/desktop/render.c b/sway/desktop/render.c
index 1d2f445d..af4e2905 100644
--- a/sway/desktop/render.c
+++ b/sway/desktop/render.c
@@ -914,12 +914,17 @@ void output_render(struct sway_output *output, struct timespec *when,
         struct wlr_output *wlr_output = output->wlr_output;
 
         struct wlr_renderer *renderer =
-        wlr_backend_get_renderer(wlr_output->backend);
+                wlr_backend_get_renderer(wlr_output->backend);
         if (!sway_assert(renderer != NULL,
                         "expected the output backend to have a renderer")) {
                 return;
         }
 
+        struct sway_workspace *workspace = output->current.active_workspace;
+        if (workspace == NULL) {
+                return;
+        }
+
         wlr_renderer_begin(renderer, wlr_output->width, wlr_output->height);
 
         if (!pixman_region32_not_empty(damage)) {
@@ -935,13 +940,11 @@ void output_render(struct sway_output *output, struct timespec *when,
                 pixman_region32_union_rect(damage, damage, 0, 0, width, height);
         }
 
-        struct sway_workspace *workspace = output->current.active_workspace;
-        struct sway_container *fullscreen_con = workspace->current.fullscreen;
-
         if (output_has_opaque_overlay_layer_surface(output)) {
                 goto render_overlay;
         }
 
+        struct sway_container *fullscreen_con = workspace->current.fullscreen;
         if (fullscreen_con) {
                 float clear_color[] = {0.0f, 0.0f, 0.0f, 1.0f};