[PATCH 0/2] audit: Fix two bugs with deleting audit watches

Hello, Tony pointed me to a long-standing use after free issue in audit watch subsystem. The first patch should fix this. When analyzing and fixing that issue, I've noticed that audit watch does not received FS_UNMOUNT event although from the code it seems it expects to receive it - patch two fixes that. The patches survive some basic testing but especially for the second patch I'd like someone with more experience with audit subsystem to have a look whether the patch makes sense. Honza