prevent crash when `layout auto` is missing args

1 files changed, 4 insertions, 0 deletions

diff --git a/sway/commands/layout.c b/sway/commands/layout.c
index 40ebd590..57a86565 100644
--- a/sway/commands/layout.c
+++ b/sway/commands/layout.c
@@ -85,6 +85,10 @@ static struct cmd_results *cmd_layout_auto(swayc_t *container, int argc, char **
         enum swayc_layouts old_layout = container->layout;
         enum swayc_layouts layout = old_layout;
 
+        if ((error = checkarg(argc, "layout auto", EXPECTED_MORE_THAN, 1))) {
+                return error;
+        }
+
         if (strcasecmp(argv[1], "left") == 0) {
                 layout = L_AUTO_LEFT;
         } else if (strcasecmp(argv[1], "right") == 0) {