ipc: handle NULL cases for node_get_output

1 files changed, 4 insertions, 2 deletions

diff --git a/sway/tree/node.c b/sway/tree/node.c
index 74661c1a..dcab1c9b 100644
--- a/sway/tree/node.c
+++ b/sway/tree/node.c
@@ -74,8 +74,10 @@ void node_get_box(struct sway_node *node, struct wlr_box *box) {
 
 struct sway_output *node_get_output(struct sway_node *node) {
         switch (node->type) {
-        case N_CONTAINER:
-                return node->sway_container->workspace->output;
+        case N_CONTAINER: {
+                struct sway_workspace *ws = node->sway_container->workspace;
+                return ws ? ws->output : NULL;
+    }
         case N_WORKSPACE:
                 return node->sway_workspace->output;
         case N_OUTPUT: