Re: [PATCH 1/3] [media] s5p-tv: Fix incorrect usage of IS_ERR_OR_NULL in hdmi_drv.c

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Hi Sylwester,

On 1 May 2013 15:02, Sylwester Nawrocki <sylvester.nawrocki@xxxxxxxxx> wrote:
> On 04/29/2013 11:24 AM, Sachin Kamat wrote:
>>
>> NULL check on clocks obtained using common clock APIs should not
>> be done. Use IS_ERR only.
>>
>> Signed-off-by: Sachin Kamat<sachin.kamat@xxxxxxxxxx>
>> ---
>>   drivers/media/platform/s5p-tv/hdmi_drv.c |   10 +++++-----
>>   1 file changed, 5 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/media/platform/s5p-tv/hdmi_drv.c
>> b/drivers/media/platform/s5p-tv/hdmi_drv.c
>> index 4e86626..b3344cb 100644
>> --- a/drivers/media/platform/s5p-tv/hdmi_drv.c
>> +++ b/drivers/media/platform/s5p-tv/hdmi_drv.c
>> @@ -765,15 +765,15 @@ static void hdmi_resources_cleanup(struct
>> hdmi_device *hdev)
>>                 regulator_bulk_free(res->regul_count, res->regul_bulk);
>>         /* kfree is NULL-safe */
>>         kfree(res->regul_bulk);
>> -       if (!IS_ERR_OR_NULL(res->hdmiphy))
>> +       if (!IS_ERR(res->hdmiphy))
>>                 clk_put(res->hdmiphy);
>> -       if (!IS_ERR_OR_NULL(res->sclk_hdmiphy))
>> +       if (!IS_ERR(res->sclk_hdmiphy))
>>                 clk_put(res->sclk_hdmiphy);
>> -       if (!IS_ERR_OR_NULL(res->sclk_pixel))
>> +       if (!IS_ERR(res->sclk_pixel))
>>                 clk_put(res->sclk_pixel);
>> -       if (!IS_ERR_OR_NULL(res->sclk_hdmi))
>> +       if (!IS_ERR(res->sclk_hdmi))
>>                 clk_put(res->sclk_hdmi);
>> -       if (!IS_ERR_OR_NULL(res->hdmi))
>> +       if (!IS_ERR(res->hdmi))
>>                 clk_put(res->hdmi);
>>         memset(res, 0, sizeof(*res));
>>   }
>
>
> I think this patch is incomplete. You need to ensure all the clock pointers
> are initially set to an invalid value. This is currently done with
> memsetting
> whole hdmi_resource structure to 0. But now some ERR_PTR() value needs to be
> used instead. Same applies to your subsequent patch.

Yes you are right.
Initialised the clocks to invalid value and sent v2 of both these patches.

-- 
With warm regards,
Sachin
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