Re: [PATCH] drm/amd: Remove null check before kfree

[Alex Deucher]

On Tue, Aug 29, 2017 at 9:28 AM, Christian KÃnig
<christian.koenig@xxxxxxx> wrote:
> Am 29.08.2017 um 15:21 schrieb Himanshu Jha:
>>
>> Kfree on NULL pointer is a no-op and therefore checking is redundant.
>>
>> Signed-off-by: Himanshu Jha <himanshujha199640@xxxxxxxxx>
>
>
> Reviewed-by: Christian KÃnig <christian.koenig@xxxxxxx>
>

Applied.  thanks!

Alex


>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c     | 6 ++----
>>   drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c | 6 ++----
>>   2 files changed, 4 insertions(+), 8 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
>> index 8d1cf2d..f51b41f 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
>> @@ -346,10 +346,8 @@ static void amdgpu_connector_free_edid(struct
>> drm_connector *connector)
>>   {
>>         struct amdgpu_connector *amdgpu_connector =
>> to_amdgpu_connector(connector);
>>   -     if (amdgpu_connector->edid) {
>> -               kfree(amdgpu_connector->edid);
>> -               amdgpu_connector->edid = NULL;
>> -       }
>> +       kfree(amdgpu_connector->edid);
>> +       amdgpu_connector->edid = NULL;
>>   }
>>     static int amdgpu_connector_ddc_get_modes(struct drm_connector
>> *connector)
>> diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
>> b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
>> index 76347ff..00075c2 100644
>> --- a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
>> +++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
>> @@ -606,10 +606,8 @@ int smu7_init(struct pp_smumgr *smumgr)
>>     int smu7_smu_fini(struct pp_smumgr *smumgr)
>>   {
>> -       if (smumgr->backend) {
>> -               kfree(smumgr->backend);
>> -               smumgr->backend = NULL;
>> -       }
>> +       kfree(smumgr->backend);
>> +       smumgr->backend = NULL;
>>         cgs_rel_firmware(smumgr->device, CGS_UCODE_ID_SMU);
>>         return 0;
>>   }
>
>
>
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