[PATCH v5 1/2] ohci-platform: Add support for devicetree instantiation
Hans de Goede
hdegoede at redhat.com
Wed Jan 15 10:07:40 EST 2014
Hi,
On 01/14/2014 08:08 PM, Alan Stern wrote:
> On Mon, 13 Jan 2014, Hans de Goede wrote:
>
>> Add support for ohci-platform instantiation from devicetree, including
>> optionally getting clks and a phy from devicetree, and enabling / disabling
>> those on power_on / off.
>>
>> This should allow using ohci-platform from devicetree in various cases.
>> Specifically after this commit it can be used for the ohci controller found
>> on Allwinner sunxi SoCs.
>
> This is fine as far as I am concerned, except for one thing.
>
>> @@ -60,17 +127,23 @@ static int ohci_platform_probe(struct platform_device *dev)
>> struct usb_hcd *hcd;
>> struct resource *res_mem;
>> struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
>> - int irq;
>> - int err = -ENOMEM;
>> -
>> - if (!pdata) {
>> - WARN_ON(1);
>> - return -ENODEV;
>> - }
>> + struct ohci_platform_priv *priv;
>> + int clk, irq, err;
>
> clk isn't initialized to anything...
Good catch, will fix and then do a v6 with this + the issue from your other mail fixed
and I'll add your ack.
>
>> -err_put_hcd:
>> - usb_put_hcd(hcd);
>> err_power:
>> if (pdata->power_off)
>> pdata->power_off(dev);
>> +err_put_clks:
>> + while (--clk >= 0)
>> + clk_put(priv->clks[clk]);
>
> ... but it gets used here. The compiler should have warned about this.
Should have yes, but it doesn't (I've just double checked).
> After fixing that, you can add
>
> Acked-by: Alan Stern <stern at rowland.harvard.edu>
Thanks & Regards,
Hans
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