efivarfs: Allow unloading when build as module
authorMathias Krause <minipli@googlemail.com>
Thu, 23 Oct 2014 21:20:37 +0000 (23:20 +0200)
committerMatt Fleming <matt.fleming@intel.com>
Tue, 11 Nov 2014 22:22:27 +0000 (22:22 +0000)
commitaf5a29aee4d1e5b5fbfbaf45cb097f9c6257c7b8
treea0c6e4f0afe9c85bc1d014a0f72b76f47395f37e
parentcac7f2429872d3733dc3f9915857b1691da2eb2f
efivarfs: Allow unloading when build as module

There is no need to keep the module loaded when it serves no function in
case the EFI runtime services are disabled. Return an error in this case
so loading the module will fail.

Also supply a module_exit function to allow unloading the module.

Last, but not least, set the owner of the file_system_type struct.

Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
fs/efivarfs/super.c