Re: [PATCH] [media] soc_camera: avoid potential null-dereference

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On Wed, Jan 7, 2015 at 10:05 PM, Andy Shevchenko
<andy.shevchenko@xxxxxxxxx> wrote:
> On Wed, Jan 7, 2015 at 9:44 PM, Guennadi Liakhovetski
> <g.liakhovetski@xxxxxx> wrote:
>> Hi Andy,
>>
>> Thanks for the patch. Will queue for the next pull request.
>
> If you didn't do that please wait. It seems it has one more place with
> similar issue. Moreover, I would like to add a person's name who
> reported this.

Okay, the second one is false positive.
And
Reported-by: Andrey Karpov <karpov@xxxxxxxxxx>

>
>>
>> Regards
>> Guennadi
>>
>> On Wed, 7 Jan 2015, Andy Shevchenko wrote:
>>
>>> We have to check the pointer before dereferencing it.
>>>
>>> Signed-off-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
>>> ---
>>>  drivers/media/platform/soc_camera/soc_camera.c | 4 +++-
>>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
>>> index b3db51c..8c665c4 100644
>>> --- a/drivers/media/platform/soc_camera/soc_camera.c
>>> +++ b/drivers/media/platform/soc_camera/soc_camera.c
>>> @@ -2166,7 +2166,7 @@ static int soc_camera_video_start(struct soc_camera_device *icd)
>>>  static int soc_camera_pdrv_probe(struct platform_device *pdev)
>>>  {
>>>       struct soc_camera_desc *sdesc = pdev->dev.platform_data;
>>> -     struct soc_camera_subdev_desc *ssdd = &sdesc->subdev_desc;
>>> +     struct soc_camera_subdev_desc *ssdd;
>>>       struct soc_camera_device *icd;
>>>       int ret;
>>>
>>> @@ -2177,6 +2177,8 @@ static int soc_camera_pdrv_probe(struct platform_device *pdev)
>>>       if (!icd)
>>>               return -ENOMEM;
>>>
>>> +     ssdd = &sdesc->subdev_desc;
>>> +
>>>       /*
>>>        * In the asynchronous case ssdd->num_regulators == 0 yet, so, the below
>>>        * regulator allocation is a dummy. They are actually requested by the
>>> --
>>> 1.8.3.101.g727a46b
>>>
>
>
>
> --
> With Best Regards,
> Andy Shevchenko



-- 
With Best Regards,
Andy Shevchenko
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