usb: cdns3: core: removed overwriting some error code
Some error code can be preserved, so we can remove overwriting error code returned by some functions. Signed-off-by:Pawel Laszczak <pawell@cadence.com> Reviewed-by:
Peter Chen <peter.chen@nxp.com> Signed-off-by:
Felipe Balbi <balbi@kernel.org>
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