util/vma: Allow initializing zero-size heaps

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24326>

diff --git a/src/util/vma.c b/src/util/vma.c
index 3775825..ca96486 100644 (file)
--- a/src/util/vma.c
+++ b/src/util/vma.c
@@ -49,7 +49,8 @@ util_vma_heap_init(struct util_vma_heap *heap,
 {
    list_inithead(&heap->holes);
    heap->free_size = 0;
-   util_vma_heap_free(heap, start, size);
+   if (size > 0)
+      util_vma_heap_free(heap, start, size);
 
    /* Default to using high addresses */
    heap->alloc_high = true;