net: mdio: mux-mmioreg: Simplified with dev_err_probe()

Use the dev_err_probe() helper to simplify code.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/drivers/net/mdio/mdio-mux-mmioreg.c b/drivers/net/mdio/mdio-mux-mmioreg.c
index 4d87e61..b70e6d1 100644 (file)
--- a/drivers/net/mdio/mdio-mux-mmioreg.c
+++ b/drivers/net/mdio/mdio-mux-mmioreg.c
@@ -109,30 +109,25 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        ret = of_address_to_resource(np, 0, &res);
-       if (ret) {
-               dev_err(&pdev->dev, "could not obtain memory map for node %pOF\n",
-                       np);
-               return ret;
-       }
+       if (ret)
+               return dev_err_probe(&pdev->dev, ret,
+                                    "could not obtain memory map for node %pOF\n", np);
        s->phys = res.start;
 
        s->iosize = resource_size(&res);
        if (s->iosize != sizeof(uint8_t) &&
            s->iosize != sizeof(uint16_t) &&
-           s->iosize != sizeof(uint32_t)) {
-               dev_err(&pdev->dev, "only 8/16/32-bit registers are supported\n");
-               return -EINVAL;
-       }
+           s->iosize != sizeof(uint32_t))
+               return dev_err_probe(&pdev->dev, -EINVAL,
+                                    "only 8/16/32-bit registers are supported\n");
 
        iprop = of_get_property(np, "mux-mask", &len);
-       if (!iprop || len != sizeof(uint32_t)) {
-               dev_err(&pdev->dev, "missing or invalid mux-mask property\n");
-               return -ENODEV;
-       }
-       if (be32_to_cpup(iprop) >= BIT(s->iosize * 8)) {
-               dev_err(&pdev->dev, "only 8/16/32-bit registers are supported\n");
-               return -EINVAL;
-       }
+       if (!iprop || len != sizeof(uint32_t))
+               return dev_err_probe(&pdev->dev, -ENODEV,
+                                    "missing or invalid mux-mask property\n");
+       if (be32_to_cpup(iprop) >= BIT(s->iosize * 8))
+               return dev_err_probe(&pdev->dev, -EINVAL,
+                                    "only 8/16/32-bit registers are supported\n");
        s->mask = be32_to_cpup(iprop);
 
        /*
@@ -142,17 +137,14 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev)
        for_each_available_child_of_node_scoped(np, np2) {
                u64 reg;
 
-               if (of_property_read_reg(np2, 0, &reg, NULL)) {
-                       dev_err(&pdev->dev, "mdio-mux child node %pOF is "
-                               "missing a 'reg' property\n", np2);
-                       return -ENODEV;
-               }
-               if ((u32)reg & ~s->mask) {
-                       dev_err(&pdev->dev, "mdio-mux child node %pOF has "
-                               "a 'reg' value with unmasked bits\n",
-                               np2);
-                       return -ENODEV;
-               }
+               if (of_property_read_reg(np2, 0, &reg, NULL))
+                       return dev_err_probe(&pdev->dev, -ENODEV,
+                                            "mdio-mux child node %pOF is missing a 'reg' property\n",
+                                            np2);
+               if ((u32)reg & ~s->mask)
+                       return dev_err_probe(&pdev->dev, -ENODEV,
+                                            "mdio-mux child node %pOF has a 'reg' value with unmasked bits\n",
+                                            np2);
        }
 
        ret = mdio_mux_init(&pdev->dev, pdev->dev.of_node,