lib-storage: mail-duplicate - Fix segfault occurring upon failure to lock and open...

Found by Coverity.

diff --git a/src/lib-storage/mail-duplicate.c b/src/lib-storage/mail-duplicate.c
index 6940ede19c0917d53463a5403da43e7742c0f240..c54371d8f56b24cf519dae67137ee7a8ac2e4b81 100644 (file)
--- a/src/lib-storage/mail-duplicate.c
+++ b/src/lib-storage/mail-duplicate.c
@@ -407,7 +407,8 @@ static void mail_duplicate_read(struct mail_duplicate_transaction *trans)
 
        (void)mail_duplicate_read_db_file(trans);
 
-       file_dotlock_delete(&dotlock);
+       if (dotlock != NULL)
+               file_dotlock_delete(&dotlock);
 }
 
 static void mail_duplicate_update(struct mail_duplicate_transaction *trans)