When calling the DSP's remote functions, the DSP returns error codes different from the ones managed by the kernel, the function's return value is shared with the MPU using a shared structure. This patch overwrites those error codes by kernel specifics and deletes unnecessary code. Signed-off-by: Rene Sapiens <rene.sapiens@ti.com> Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>