cov: fix missing null allocation check

diff --git a/base/data-struct/radix-tree-adaptive.c b/base/data-struct/radix-tree-adaptive.c
index cd53dd6005620dfc4f1b0a584f399f41d91e100a..cbe8302c33f5d851423a71e35b36cbcf96b46a3f 100644 (file)
--- a/base/data-struct/radix-tree-adaptive.c
+++ b/base/data-struct/radix-tree-adaptive.c
@@ -265,7 +265,8 @@ static bool _insert_prefix_chain(struct radix_tree *rt, struct value *v, uint8_t
                        if (kb[i] != pc->prefix[i])
                                break;
 
-               pc2 = zalloc(sizeof(*pc2) + pc->len - i);
+               if (!(pc2 = zalloc(sizeof(*pc2) + pc->len - i)))
+                       return false;
                pc2->len = pc->len - i;
                memmove(pc2->prefix, pc->prefix + i, pc2->len);
                pc2->child = pc->child;