On 01/08/2014 05:16 PM, Arnd Bergmann wrote:
> On Wednesday 08 January 2014 16:58:15 Roger Quadros wrote:
>> hpriv->phy = devm_phy_get(dev, "sata-phy");
>> if (IS_ERR(hpriv->phy)) {
>> if (PTR_ERR(hpriv->phy) == -ENODEV)
>> goto continue;
>>
>> dev_err(dev, "couldn't get sata-phy\n");
>> rc = PTR_ERR(hpriv->phy);
>> goto disable_unprepare_clk;
>> }
>>
>> continue:
>>
>> if (!IS_ERR(hpriv->phy)) {
>> rc = phy_init(hpriv->phy);
>> if (rc)
>> goto disable_unprepare_clk;
>>
>> rc = phy_power_on(hpriv->phy);
>> if (rc) {
>> phy_exit(hpriv->phy);
>> goto disable_unprepare_clk;
>> }
>> }
>
> As I said, I'd prefer to set hpriv->phy to NULL in case of -ENODEV,
> but functionally it seems right (with the fixup from your other mail).
>
Why do you prefer setting hpriv->phy to NULL instead of using IS_ERR() check
before hpriv->phy is used?
The latter seems to be the norm at least among clock framework users.
> One more comment: you shouldn't print an error message before
> returning -EPROBE_DEFER, so if you want to keep that message,
> you have to check for that return value after all.
>
Right.
cheers,
-roger
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