Merge tag 'nfc-next-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo...

[firefly-linux-kernel-4.4.55.git] / drivers / nfc / pn544 / i2c.c

diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index 7da9071b68b60669c7d24441dee721b1c82c87fd..7f96ca2c46bd13cfa1d8dafedb27abd9828b5740 100644 (file)
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -376,12 +376,12 @@ static int __devinit pn544_hci_i2c_probe(struct i2c_client *client,
                return -ENODEV;
        }
 
-       phy = kzalloc(sizeof(struct pn544_i2c_phy), GFP_KERNEL);
+       phy = devm_kzalloc(&client->dev, sizeof(struct pn544_i2c_phy),
+                          GFP_KERNEL);
        if (!phy) {
                dev_err(&client->dev,
                        "Cannot allocate memory for pn544 i2c phy.\n");
-               r = -ENOMEM;
-               goto err_phy_alloc;
+               return -ENOMEM;
        }
 
        phy->i2c_dev = client;
@@ -390,20 +390,18 @@ static int __devinit pn544_hci_i2c_probe(struct i2c_client *client,
        pdata = client->dev.platform_data;
        if (pdata == NULL) {
                dev_err(&client->dev, "No platform data\n");
-               r = -EINVAL;
-               goto err_pdata;
+               return -EINVAL;
        }
 
        if (pdata->request_resources == NULL) {
                dev_err(&client->dev, "request_resources() missing\n");
-               r = -EINVAL;
-               goto err_pdata;
+               return -EINVAL;
        }
 
        r = pdata->request_resources(client);
        if (r) {
                dev_err(&client->dev, "Cannot get platform resources\n");
-               goto err_pdata;
+               return r;
        }
 
        phy->gpio_en = pdata->get_gpio(NFC_GPIO_ENABLE);
@@ -435,10 +433,6 @@ err_rti:
        if (pdata->free_resources != NULL)
                pdata->free_resources();
 
-err_pdata:
-       kfree(phy);
-
-err_phy_alloc:
        return r;
 }
 
@@ -458,8 +452,6 @@ static __devexit int pn544_hci_i2c_remove(struct i2c_client *client)
        if (pdata->free_resources)
                pdata->free_resources();
 
-       kfree(phy);
-
        return 0;
 }
 
@@ -472,29 +464,7 @@ static struct i2c_driver pn544_hci_i2c_driver = {
        .remove = __devexit_p(pn544_hci_i2c_remove),
 };
 
-static int __init pn544_hci_i2c_init(void)
-{
-       int r;
-
-       pr_debug(DRIVER_DESC ": %s\n", __func__);
-
-       r = i2c_add_driver(&pn544_hci_i2c_driver);
-       if (r) {
-               pr_err(PN544_HCI_I2C_DRIVER_NAME
-                      ": driver registration failed\n");
-               return r;
-       }
-
-       return 0;
-}
-
-static void __exit pn544_hci_i2c_exit(void)
-{
-       i2c_del_driver(&pn544_hci_i2c_driver);
-}
-
-module_init(pn544_hci_i2c_init);
-module_exit(pn544_hci_i2c_exit);
+module_i2c_driver(pn544_hci_i2c_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION(DRIVER_DESC);