MIPS: pci-mt7620: Fix return value check in mt7620_pci_probe()

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>
Acked-by: John Crispin <blogic@openwrt.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12451/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/pci/pci-mt7620.c b/arch/mips/pci/pci-mt7620.c
index a009ee4..1ae932c 100644 (file)
--- a/arch/mips/pci/pci-mt7620.c
+++ b/arch/mips/pci/pci-mt7620.c
@@ -297,12 +297,12 @@ static int mt7620_pci_probe(struct platform_device *pdev)
                return PTR_ERR(rstpcie0);
 
        bridge_base = devm_ioremap_resource(&pdev->dev, bridge_res);
-       if (!bridge_base)
-               return -ENOMEM;
+       if (IS_ERR(bridge_base))
+               return PTR_ERR(bridge_base);
 
        pcie_base = devm_ioremap_resource(&pdev->dev, pcie_res);
-       if (!pcie_base)
-               return -ENOMEM;
+       if (IS_ERR(pcie_base))
+               return PTR_ERR(pcie_base);
 
        iomem_resource.start = 0;
        iomem_resource.end = ~0;