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From:   Heiko =?ISO-8859-1?Q?St=FCbner?= <heiko@sntech.de>
To:     Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc:     linux-kernel@vger.kernel.org,
        Felipe Balbi <felipe.balbi@linux.intel.com>,
        Amelie Delaunay <amelie.delaunay@st.com>,
        Minas Harutyunyan <hminas@synopsys.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-usb@vger.kernel.org
Subject: Re: [PATCH v4] usb: dwc2: dwc2_vbus_supply_init: fix error check
Date:   Mon, 26 Mar 2018 13:51:05 +0200
Message-ID: <2158461.zz8sS7CZ86@diego>
In-Reply-To: <20180326090001.57627-1-tomeu.vizoso@collabora.com>
References: <20180322093943.49717-1-tomeu.vizoso@collabora.com> <20180326090001.57627-1-tomeu.vizoso@collabora.com>
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Am Montag, 26. M?rz 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@st.com>
> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>

Reviewed-by: Heiko Stuebner <heiko@sntech.de>