usb: dwc2: dwc2_vbus_supply_init: fix error check

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 <[email protected]>
Reviewed-by: Amelie Delaunay <[email protected]>
Reviewed-by: Heiko Stuebner <[email protected]>
Reviewed-by: Grigor Tovmasyan <[email protected]>
Tested-by: Heiko Stuebner <[email protected]>
Acked-by: Minas Harutyunyan <[email protected]>
Signed-off-by: Tomeu Vizoso <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>

0 files changed, 0 insertions, 0 deletions