net: phy: spi_ks8995: Introduce the use of devm_kzalloc

This patch introduces the use of devm_kzalloc and does away with the
kfrees in the probe and remove functions. Also, a label is removed.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/phy/spi_ks8995.c
index 22b047f..eab57fc 100644 (file)
--- a/drivers/net/phy/spi_ks8995.c
+++ b/drivers/net/phy/spi_ks8995.c
@@ -277,7 +277,7 @@ static int ks8995_probe(struct spi_device *spi)
        /* Chip description */
        pdata = spi->dev.platform_data;
 
-       ks = kzalloc(sizeof(*ks), GFP_KERNEL);
+       ks = devm_kzalloc(&spi->dev, sizeof(*ks), GFP_KERNEL);
        if (!ks)
                return -ENOMEM;
 
@@ -291,14 +291,14 @@ static int ks8995_probe(struct spi_device *spi)
        err = spi_setup(spi);
        if (err) {
                dev_err(&spi->dev, "spi_setup failed, err=%d\n", err);
-               goto err_drvdata;
+               return err;
        }
 
        err = ks8995_read(ks, ids, KS8995_REG_ID0, sizeof(ids));
        if (err < 0) {
                dev_err(&spi->dev, "unable to read id registers, err=%d\n",
                                err);
-               goto err_drvdata;
+               return err;
        }
 
        switch (ids[0]) {
@@ -306,8 +306,7 @@ static int ks8995_probe(struct spi_device *spi)
                break;
        default:
                dev_err(&spi->dev, "unknown family id:%02x\n", ids[0]);
-               err = -ENODEV;
-               goto err_drvdata;
+               return -ENODEV;
        }
 
        memcpy(&ks->regs_attr, &ks8995_registers_attr, sizeof(ks->regs_attr));
@@ -320,24 +319,24 @@ static int ks8995_probe(struct spi_device *spi)
                        dev_err(&spi->dev,
                                "unable to read chip id register, err=%d\n",
                                err);
-                       goto err_drvdata;
+                       return err;
                }
                if ((val & 0x80) == 0) {
                        dev_err(&spi->dev, "unknown chip:%02x,0\n", ids[1]);
-                       goto err_drvdata;
+                       return err;
                }
                ks->regs_attr.size = KSZ8864_REGS_SIZE;
        }
 
        err = ks8995_reset(ks);
        if (err)
-               goto err_drvdata;
+               return err;
 
        err = sysfs_create_bin_file(&spi->dev.kobj, &ks->regs_attr);
        if (err) {
                dev_err(&spi->dev, "unable to create sysfs file, err=%d\n",
                                    err);
-               goto err_drvdata;
+               return err;
        }
 
        if (get_chip_id(ids[1]) == CHIPID_M) {
@@ -350,21 +349,12 @@ static int ks8995_probe(struct spi_device *spi)
        }
 
        return 0;
-
-err_drvdata:
-       kfree(ks);
-       return err;
 }
 
 static int ks8995_remove(struct spi_device *spi)
 {
-       struct ks8995_data      *ks8995;
-
-       ks8995 = spi_get_drvdata(spi);
        sysfs_remove_bin_file(&spi->dev.kobj, &ks8995_registers_attr);
 
-       kfree(ks8995);
-
        return 0;
 }