[PATCH 1/2] drm/xe: Fix static analysis tool reported errors

[Poosa, Karthik]

Agree, fixing in next patch.

On 22-03-2024 11:50, Riana Tauro wrote:
> Hi Karthik
>
> On 3/22/2024 11:34 AM, Gupta, Anshuman wrote:
>>
>>
>>> -----Original Message-----
>>> From: Poosa, Karthik <karthik.poosa at intel.com>
>>> Sent: Thursday, March 21, 2024 4:16 PM
>>> To: intel-xe at lists.freedesktop.org
>>> Cc: Gupta, Anshuman <anshuman.gupta at intel.com>; Nilawar, Badal
>>> <badal.nilawar at intel.com>; Poosa, Karthik <karthik.poosa at intel.com>
>>> Subject: [PATCH 1/2] drm/xe: Fix static analysis tool reported errors
>>>
>>> Add a NULL pointer check.
>>>
>>> Fixes: 09d88e3beb64 ("drm/xe/pm: Init pcode and restore vram on 
>>> power lost")
>>> Signed-off-by: Karthik Poosa <karthik.poosa at intel.com>
>> Reviewed-by: Anshuman Gupta <anshuman.gupta at intel.com>
>>> ---
>>>   drivers/gpu/drm/xe/xe_pm.c | 5 +++++
>>>   1 file changed, 5 insertions(+)
>>>
>>> diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c 
>>> index
>>> cc650a92c2fc..5cb5aef16823 100644
>>> --- a/drivers/gpu/drm/xe/xe_pm.c
>>> +++ b/drivers/gpu/drm/xe/xe_pm.c
>>> @@ -383,6 +383,11 @@ int xe_pm_runtime_resume(struct xe_device *xe)
>>>        * really lost power. Detecting primary Gt power is sufficient.
>>>        */
>>>       gt = xe_device_get_gt(xe, 0);
>>> +    if (!gt) {
>>> +        drm_err(&xe->drm, "xe_gt pointer NULL in xe_device\n");
> You can just print "gt is NULL"
>>> +        return -ENXIO;
> You need to set err and goto out and release the previous resources
>
> Thanks,
> Riana
>>> +    }
>>> +
>>>       xe->d3cold.power_lost = xe_guc_in_reset(&gt->uc.guc);
>>>
>>>       if (xe->d3cold.allowed && xe->d3cold.power_lost) {
>>> -- 
>>> 2.25.1
>>