Subject: Re: [PATCH V2 net-next 6/8] net: hns3: Add MDIO support to HNS3 Ethernet driver for hip08 SoC

From: Andrew Lunn <[email-masked]>
Date: Wed, 14 Jun 2017 04:55:52 +0200

> +	if (le16_to_cpu(HCLGE_MDIO_STA_VAL(mdio_cmd->sta))) {
> +		dev_err(&hdev->pdev->dev, "mdio read data error\n");
> +		return -ENOMEM;
> +	}

If it is not zero, it is an error. !0 is always !0, big or little
endian, so there is no point doing the le16_to_cpu().

Where is the memory allocation which failed?

      Andrew