resolved: check return value of memdup() correctly for OOM

diff --git a/src/resolve/resolved-dns-rr.c b/src/resolve/resolved-dns-rr.c
index 9ca7ad96fd2fa1380c58873d673d6b6bb80481a4..2db7ec4a0a05c1c219087daeabc852e71db31ab7 100644 (file)
--- a/src/resolve/resolved-dns-rr.c
+++ b/src/resolve/resolved-dns-rr.c
@@ -1650,7 +1650,7 @@ DnsResourceRecord *dns_resource_record_copy(DnsResourceRecord *rr) {
                         return NULL;
                 copy->nsec3.salt_size = rr->nsec3.salt_size;
                 copy->nsec3.next_hashed_name = memdup(rr->nsec3.next_hashed_name, rr->nsec3.next_hashed_name_size);
-                if (!copy->nsec3.next_hashed_name_size)
+                if (!copy->nsec3.next_hashed_name)
                         return NULL;
                 copy->nsec3.next_hashed_name_size = rr->nsec3.next_hashed_name_size;
                 copy->nsec3.types = bitmap_copy(rr->nsec3.types);