callers of tegra_xusb_find_port_node() function only do NULL checking for
the return value. return NULL instead of ERR_PTR(-ENOMEM) to keep
consistent.
Signed-off-by: NMiaoqian Lin <linmq006@gmail.com>
Acked-by: NThierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20211213020507.1458-1-linmq006@gmail.comSigned-off-by: NVinod Koul <vkoul@kernel.org>