On Mon, Apr 2, 2018 at 9:02 PM, Felix Kuehling <felix.kuehling at amd.com> wrote:
> Thanks for catching that. I'd use -ENODEV to match what is done a few
> lines below for peer_pdd. With that fixed, this patch is Reviewed-by:
> Felix Kuehling <Felix.Kuehling at amd.com>
>
> Regards,
> Felix
>
>
> On 2018-03-29 10:25 PM, Wei Yongjun wrote:
>> Passing NULL pointer to PTR_ERR will result in return value of 0
>> indicating success which is clearly not what it is intended here.
>> This patch returns -EINVAL instead.
>>
>> Fixes: 5ec7e02854b3 ("drm/amdkfd: Add ioctls for GPUVM memory management")
>> Signed-off-by: Wei Yongjun <weiyongjun1 at huawei.com>
>> ---
>> drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
>> index cd679cf..c32a341 100644
>> --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
>> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
>> @@ -1421,7 +1421,7 @@ static int kfd_ioctl_unmap_memory_from_gpu(struct file *filep,
>>
>> pdd = kfd_get_process_device_data(dev, p);
>> if (!pdd) {
>> - err = PTR_ERR(pdd);
>> + err = -EINVAL;
>> goto bind_process_to_device_failed;
>> }
>>
>
Thanks!
Applied to -fixes with the -ENODEV return code
Oded
