The controller is registered using the device-managed function
'devm_mbox_controller_register()'. As documented in mailbox.c, this
ensures the devres framework automatically calls
mbox_controller_unregister() when device_unregister() is invoked, making
the explicit call unnecessary.
Remove redundant mbox_controller_unregister() call as
device_unregister() handles controller cleanup.
Fixes: 4981b82ba2ff ("mailbox: ZynqMP IPI mailbox controller")
Signed-off-by: Harini T <harini.t@amd.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
        for (; i >= 0; i--) {
                ipi_mbox = &pdata->ipi_mboxes[i];
                if (ipi_mbox->dev.parent) {
-                       mbox_controller_unregister(&ipi_mbox->mbox);
                        if (device_is_registered(&ipi_mbox->dev))
                                device_unregister(&ipi_mbox->dev);
                }