[PATCH 20/29] accel/ivpu: Prevent recovery invocation during probe and resume

[Jeffrey Hugo]

On 9/24/2024 2:17 AM, Jacek Lawrynowicz wrote:
> From: Karol Wachowski <karol.wachowski at intel.com>
> 
> Refactor IPC send and receive functions to allow correct
> handling of operations that should not trigger a recovery process.
> 
> Expose ivpu_send_receive_internal(), which is now utilized by the D0i3
> entry, DCT initialization, and HWS initialization functions.
> These functions have been modified to return error codes gracefully,
> rather than initiating recovery.
> 
> The updated functions are invoked within ivpu_probe() and ivpu_resume(),
> ensuring that any errors encountered during these stages result in a proper
> teardown or shutdown sequence. The previous approach of triggering recovery
> within these functions could lead to a race condition, potentially causing
> undefined behavior and kernel crashes due to null pointer dereferences.

Fixing possible kernel panics, sounds like a great idea. Should have a 
fixes tag through?