A lot of kernel resources are managed through infrastructure like devres: https://docs.kernel.org/6.0/driver-api/driver-model/devres.html https://docs.kernel.o

A lot of kernel resources are managed through infrastructure like devres: https://docs.kernel.org/6.0/driver-api/driver-model/devres.html https://docs.kernel.org/6.0/driver-api/driver-model/devres.h... These days it's entirely possible to write a decent driver with only the foggiest idea of how memory management happens in the kernel.