Fix potential null deref (coverity)

diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 5f287f4b182d0bacac0ab3d26668f21621fd2b9a..ab3b3a0d5e73f3a748f30ca8a1308ac03d133180 100644 (file)
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -4647,13 +4647,15 @@ mdb_env_close0(MDB_env *env, int excl)
                return;
 
        /* Doing this here since me_dbxs may not exist during mdb_env_close */
-       for (i = env->me_maxdbs; --i > MAIN_DBI; )
-               free(env->me_dbxs[i].md_name.mv_data);
+       if (env->me_dbxs) {
+               for (i = env->me_maxdbs; --i > MAIN_DBI; )
+                       free(env->me_dbxs[i].md_name.mv_data);
+               free(env->me_dbxs);
+       }
 
        free(env->me_pbuf);
        free(env->me_dbiseqs);
        free(env->me_dbflags);
-       free(env->me_dbxs);
        free(env->me_path);
        free(env->me_dirty_list);
        free(env->me_txn0);
@@ -7456,7 +7458,7 @@ mdb_node_move(MDB_cursor *csrc, MDB_cursor *cdst)
                        cdst->mc_ki[cdst->mc_top] = 0;
                        rc = mdb_update_key(cdst, &nullkey);
                        cdst->mc_ki[cdst->mc_top] = ix;
-                       mdb_cassert(csrc, rc == MDB_SUCCESS);
+                       mdb_cassert(cdst, rc == MDB_SUCCESS);
                }
        }