4e5a929f5c
[ Upstream commit019e3f4550] The ipi_mbox->dev.parent check is unreliable proxy for registration status as it fails to protect against probe failures that occur after the parent is assigned but before device_register() completes. device_is_registered() is the canonical and robust method to verify the registration status. Remove ipi_mbox->dev.parent check in zynqmp_ipi_free_mboxes(). Fixes:4981b82ba2("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> Signed-off-by: Sasha Levin <sashal@kernel.org>