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Date:	Fri, 12 Sep 2014 07:12:57 +0800
To:	Giuseppe Cavallaro <>
Cc:	Wei Yongjun <>,
Subject: [PATCH -next] net: stmmac: fix return value check in socfpga_dwmac_parse_data()

From: Wei Yongjun <>

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 <>
 drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index ddc6115..3aad413 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -120,9 +120,9 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *
 		dwmac->splitter_base = devm_ioremap_resource(dev, &res_splitter);
-		if (!dwmac->splitter_base) {
+		if (IS_ERR(dwmac->splitter_base)) {
 			dev_info(dev, "Failed to mapping emac splitter\n");
-			return -EINVAL;
+			return PTR_ERR(dwmac->splitter_base);

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