[PATCH] drm/amdgpu: Uninitialized variable in amdgpu_ttm_backend_bind()

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Am 10.08.2017 um 07:34 schrieb Alex Deucher:
> On Wed, Aug 9, 2017 at 10:16 PM, Michel Dänzer <michel at daenzer.net> wrote:
>> On 09/08/17 07:30 PM, Dan Carpenter wrote:
>>> My static checker complains that it's possible for "r" to be
>>> uninitialized.  It used to be set to zero so this returns it to the old
>>> behavior.
>>>
>>> Fixes: 98a7f88ce9a9 ("drm/amdgpu: bind BOs with GTT space allocated directly v2")
>>> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>>> index e6f9a54c959d..b5f2a08757d6 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>>> @@ -753,7 +753,7 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm,
>>>                                   struct ttm_mem_reg *bo_mem)
>>>   {
>>>        struct amdgpu_ttm_tt *gtt = (void*)ttm;
>>> -     int r;
>>> +     int r = 0;
>>>
>>>        if (gtt->userptr) {
>>>                r = amdgpu_ttm_tt_pin_userptr(ttm);
>> Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>
> Applied.  thanks!

For what's worth Reviewed-by: Christian König <christian.koenig at amd.com> 
as well.

Might as well explain some fallout people reported about this patch, 
going to ping them for testing.

Christian.

>
> Alex
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