Disregard my comment.
On 5/12/19 7:31 AM, Minwoo Im wrote:
>>> + union nvme_result res;
>>> + int ret;
>>> +
>>> + if (!result)
>>> + return -EINVAL;
>>> +
>>> + memset(&c, 0, sizeof(c));
>>> + c.features.opcode = nvme_admin_get_features;
>>> + c.features.fid = cpu_to_le32(NVME_FEAT_POWER_MGMT);
>>> +
>>> + ret = __nvme_submit_sync_cmd(ctrl->admin_q, &c, &res,
>>> + NULL, 0, 0, NVME_QID_ANY, 0, 0, false);
>>> + if (ret >= 0)
>>> + *result = le32_to_cpu(res.u32);
>> May be add a check for result here in above if before deref pointer :-
>> if (ret >= 0 && result)
>>
> 'result' already has been checked in a few lines above.
>
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