[PATCH] remoteproc: imx_rproc: Fix unreachable platform prepare_ops

[Daniel Baluta]

On 2/8/26 13:30, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan at nxp.com>
>
> Smatch reports unreachable code in imx_rproc_prepare(), where an early
> return inside the reserved-memory parsing loop prevents platform
> prepare_ops from being executed.
>
> When of_reserved_mem_region_to_resource() fails, imx_rproc_prepare()
> returns immediately, so the platform-specific prepare callback is never
> called. As a result, prepare_ops such as imx_rproc_sm_lmm_prepare() on
> i.MX95 have no chance to run.
>
> This is problematic when Linux controls the M7 Logical Machine and is
> responsible for preparing resources such as TCM. Without running the
> platform prepare callback, loading the M7 ELF into TCM may fail if the
> bootloader did not power up and initialize TCM.
>
> Fix this by breaking out of the reserved-memory loop instead of
> returning, allowing the platform prepare_ops to be executed as intended.
>
> Fixes: edd2a9956055 ("remoteproc: imx_rproc: Introduce prepare ops for imx_rproc_dcfg")
> Reported-by: Dan Carpenter <dan.carpenter at linaro.org>
> Closes: https://lore.kernel.org/linux-remoteproc/aYYXAa2Fj36XG4yQ@p14s/T/#t
> Signed-off-by: Peng Fan <peng.fan at nxp.com>

Reviewed-by: Daniel Baluta <daniel.baluta at nxp.com>