Re: [PATCH v4] usb: dwc2: dwc2_vbus_supply_init: fix error check

From: Heiko Stübner
Date: Mon Mar 26 2018 - 07:51:18 EST


Am Montag, 26. März 2018, 11:00:01 CEST schrieb Tomeu Vizoso:
> devm_regulator_get_optional returns -ENODEV if the regulator isn't
> there, so if that's the case we have to make sure not to leave -ENODEV
> in the regulator pointer.
>
> Also, make sure we return 0 in that case, but correctly propagate any
> other errors. Also propagate the error from _dwc2_hcd_start.
>
> Fixes: 531ef5ebea96 ("usb: dwc2: add support for host mode external vbus
> supply") Cc: Amelie Delaunay <amelie.delaunay@xxxxxx>
> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>

Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>