Merge pull request #3185 from NetworkManager/lr/unhappy-trie

Fix incorrect string deduplication in udev

1 files changed, 2 insertions, 1 deletions

diff --git a/src/basic/strbuf.c b/src/basic/strbuf.c
index 797f00cf71..4bef87d3c2 100644
--- a/src/basic/strbuf.c
+++ b/src/basic/strbuf.c
@@ -156,12 +156,13 @@ ssize_t strbuf_add_string(struct strbuf *str, const char *s, size_t len) {
                         return off;
                 }
 
+                c = s[len - 1 - depth];
+
                 /* bsearch is not allowed on a NULL sequence */
                 if (node->children_count == 0)
                         break;
 
                 /* lookup child node */
-                c = s[len - 1 - depth];
                 search.c = c;
                 child = bsearch(&search, node->children, node->children_count,
                                 sizeof(struct strbuf_child_entry),