spmi: mediatek: Fix UAF on device remove

In the Linux kernel, the following vulnerability has been resolved:

spmi: mediatek: Fix UAF on device remove

The pmif driver data that contains the clocks is allocated along with

spmi_controller.

On device remove, spmi_controller will be freed first, and then devres

, including the clocks, will be cleanup.

This leads to UAF because putting the clocks will access the clocks in

the pmif driver data, which is already freed along with spmi_controller.

This can be reproduced by enabling DEBUG_TEST_DRIVER_REMOVE and

building the kernel with KASAN.

Fix the UAF issue by using unmanaged clk_bulk_get() and putting the

clocks before freeing spmi_controller.