scaled-font-buffer.c: initialize `buffer` to avoid bug waiting to happen

diff --git a/src/common/scaled-font-buffer.c b/src/common/scaled-font-buffer.c
index f785e2e16597d7d43845bbb47a882656d2973c9d..c93823780dba5e18723804c3f354e714be182c1b 100644 (file)
--- a/src/common/scaled-font-buffer.c
+++ b/src/common/scaled-font-buffer.c
@@ -14,13 +14,17 @@
 static struct lab_data_buffer *
 _create_buffer(struct scaled_scene_buffer *scaled_buffer, double scale)
 {
-       struct lab_data_buffer *buffer;
+       struct lab_data_buffer *buffer = NULL;
        struct scaled_font_buffer *self = scaled_buffer->data;
 
        /* Buffer gets free'd automatically along the backing wlr_buffer */
        font_buffer_create(&buffer, self->max_width, self->text,
                &self->font, self->color, self->bg_color, self->arrow, scale);
 
+       if (!buffer) {
+               wlr_log(WLR_ERROR, "font_buffer_create() failed");
+       }
+
        self->width = buffer ? buffer->unscaled_width : 0;
        self->height = buffer ? buffer->unscaled_height : 0;
        return buffer;