[PATCH] tomoyo: Fix NULL pointer dereference in tomoyo_init_request_info() when domain is NULL

[Tetsuo Handa]

Thank you for a patch, but I don't think we need this change.

TOMOYO's initial domain is &tomoyo_kernel_domain, and each thread belongs to
a non-NULL domain. Therefore, tomoyo_domain() is not supposed to return NULL.

> Found by fuzzing. Here is the report:
> 
> Unable to handle kernel paging request at virtual address dfffffff00000003

Is this a NULL pointer dereference?
It seems to me that this is just a random memory corruption.