buffer_tree: Assert that we don't pass NULL to memcpy().

The buffer pointer cannot be NULL here because this only happens when the
buffer tree area is full, which is not the case thanks to the previous n <=
btr_pool_unused(btrp) check.

diff --git a/buffer_tree.c b/buffer_tree.c
index 049eed364fad5e7315523b23f53d1d70b56d6461..9733ea5054ac1664c0939b601b92493c96a3fe67 100644 (file)
--- a/buffer_tree.c
+++ b/buffer_tree.c
@@ -507,6 +507,7 @@ void btr_copy(const void *src, size_t n, struct btr_pool *btrp,
                return;
        sz = btr_pool_get_buffer(btrp, &buf);
        assert(sz >= n - copy);
+       assert(buf);
        memcpy(buf, src + copy, n - copy);
        btr_add_output_pool(btrp, n - copy, btrn);
 }