Re: [PATCH 1/2] mfd: 88pm800: Fix the bug that pdata may be NULL

From: Chao Xie
Date: Tue Aug 27 2013 - 02:12:04 EST


On Tue, Aug 20, 2013 at 9:40 AM, Samuel Ortiz <sameo@xxxxxxxxxxxxxxx> wrote:
> Hi Xie,
>
> On Sun, Aug 18, 2013 at 09:27:54PM -0400, Chao Xie wrote:
>> User pass platform data to device, and platform data may be
>> NULL.
> In which case do you get that ? With DT ?
> Should rtc_init fail when pdata is NULL ?
>
> You need to explain that, be it only for us to know if it's a critical
> fix or not.
>
Sorry for late response.
If pdata is NULL, the driver will fail. So the error check should be done at
the beginning of probe.
If (!pdata)
return -EINVAL;

Is that OK?

> Cheers,
> Samuel.
>
> --
> Intel Open Source Technology Centre
> http://oss.intel.com/
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