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	<Pine.LNX.4.44L0.1504151035150.1404-100000@iolanthe.rowland.org>
Date: Thu, 16 Apr 2015 10:25:44 +0530
Message-ID: <CAA7nrthjap=s1PMgN3=hzvxzgPNruO=X-XxJdDDWu75mOXtR3g@mail.gmail.com>
Subject: Re: [PATCHv2 2/3] usb: ehci-platform: Use devm_of_phy_get_by_index
From: rajeev kumar <rajeevkumar.linux@gmail.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Arun Ramamurthy <arun.ramamurthy@broadcom.com>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        Tony Prisk <linux@prisktech.co.nz>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Arnd Bergmann <arnd@arndb.de>, Felipe Balbi <balbi@ti.com>,
        Mathias Nyman <mathias.nyman@linux.intel.com>,
        Paul Bolle <pebolle@tiscali.nl>,
        Thomas Pugliese <thomas.pugliese@gmail.com>,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
        David Mosberger <davidm@egauge.net>,
        Peter Griffin <peter.griffin@linaro.org>,
        Gregory CLEMENT <gregory.clement@free-electrons.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Kevin Hao <haokexin@gmail.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
        linux-usb@vger.kernel.org, Dmitry Torokhov <dtor@google.com>,
        Anatol Pomazau <anatol@google.com>,
        Jonathan Richardson <jonathar@broadcom.com>,
        Scott Branden <sbranden@broadcom.com>, Ray Jui <rjui@broadcom.com>,
        bcm-kernel-feedback-list@broadcom.com
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On Wed, Apr 15, 2015 at 8:06 PM, Alan Stern <stern@rowland.harvard.edu> wrote:
> On Wed, 15 Apr 2015, rajeev kumar wrote:
>
>> > @@ -88,15 +88,13 @@ static int ehci_platform_power_on(struct platform_device *dev)
>> >         }
>> >
>> >         for (phy_num = 0; phy_num < priv->num_phys; phy_num++) {
>> > -               if (priv->phys[phy_num]) {
>> > -                       ret = phy_init(priv->phys[phy_num]);
>> > -                       if (ret)
>> > -                               goto err_exit_phy;
>> > -                       ret = phy_power_on(priv->phys[phy_num]);
>> > -                       if (ret) {
>> > -                               phy_exit(priv->phys[phy_num]);
>> > -                               goto err_exit_phy;
>> > -                       }
>> > +               ret = phy_init(priv->phys[phy_num]);
>> > +               if (ret)
>> > +                       goto err_exit_phy;
>>
>> Jumping to err_exit_phy will perform phy_power_off also which is not
>> required as you are are powering on after phy_init. Wrong level
>> jumping
>
> Look again, and this time pay more attention to the value of phy_num.
>
> Alan Stern

MIssed it ,  Thanks for the pointer.

~Rajeev

>
>> ~Rajeev
>>
>> > +               ret = phy_power_on(priv->phys[phy_num]);
>> > +               if (ret) {
>> > +                       phy_exit(priv->phys[phy_num]);
>> > +                       goto err_exit_phy;
>> >                 }
>> >         }
>> >
>> > @@ -104,10 +102,8 @@ static int ehci_platform_power_on(struct platform_device *dev)
>> >
>> >  err_exit_phy:
>> >         while (--phy_num >= 0) {
>> > -               if (priv->phys[phy_num]) {
>> > -                       phy_power_off(priv->phys[phy_num]);
>> > -                       phy_exit(priv->phys[phy_num]);
>> > -               }
>> > +               phy_power_off(priv->phys[phy_num]);
>> > +               phy_exit(priv->phys[phy_num]);
>> >         }
>
>
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