net: stmmac: fix return value check in socfpga_dwmac_parse_data()
In case of error, the function devm_ioremap_resource() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -120,9 +120,9 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *
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}
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dwmac->splitter_base = devm_ioremap_resource(dev, &res_splitter);
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if (!dwmac->splitter_base) {
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if (IS_ERR(dwmac->splitter_base)) {
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dev_info(dev, "Failed to mapping emac splitter\n");
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return -EINVAL;
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return PTR_ERR(dwmac->splitter_base);
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}
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}
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