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-rw-r--r--desktop/treeview.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/desktop/treeview.c b/desktop/treeview.c
index c14d7a851..8bf4923c7 100644
--- a/desktop/treeview.c
+++ b/desktop/treeview.c
@@ -321,6 +321,8 @@ static nserror treeview_walk_internal(treeview_node *root, bool full,
bool skip_children = false;
nserror err;
+ assert(root != NULL);
+
node = root;
parent = node->parent;
next_sibling = node->next_sib;