Calling cgroup V1 New function fails for kernels that don't have swap enabled

Hello,

I encountered an issue with creating a new cgroup when using cgroup V1, on a system that doesn't have swap enabled.

I eventually get the following error:
`open /sys/fs/cgroup/memory//memory.memsw.limit_in_bytes: permission denied`

This error is returned from the `InitializeSubsystem` function.
After this function is called, the returned error is checked to be ErrControllerNotActive, and since this is not the returned error, the code does not continue to the `InitCheck` part, and so the user has no option to ignore the error.

I suggest to change the code that checks the returned error from `InitializeSubsystem`, so that it would use the `InitCheck` function regardless of the type of the returned error.