eeprom: at24: drop unnecessary label
authorBartosz Golaszewski <bgolaszewski@baylibre.com>
Mon, 20 May 2019 07:10:42 +0000 (09:10 +0200)
committerBartosz Golaszewski <bgolaszewski@baylibre.com>
Tue, 28 May 2019 15:55:11 +0000 (17:55 +0200)
If we move the nvmem registration above the pm enable calls and the
test read, we can drop the error label and make the code more readable
as there's now only a single place where we must call
pm_runtime_disable() in error path.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
drivers/misc/eeprom/at24.c

index bdeec0777029838d3572e30c599c68ff2b915c2c..ba8e7381264471289689a194bb5b93085b397955 100644 (file)
@@ -685,23 +685,6 @@ static int at24_probe(struct i2c_client *client)
                        return err;
        }
 
-       i2c_set_clientdata(client, at24);
-
-       /* enable runtime pm */
-       pm_runtime_set_active(dev);
-       pm_runtime_enable(dev);
-
-       /*
-        * Perform a one-byte test read to verify that the
-        * chip is functional.
-        */
-       err = at24_read(at24, 0, &test_byte, 1);
-       pm_runtime_idle(dev);
-       if (err) {
-               err = -ENODEV;
-               goto err_runtime_pm;
-       }
-
        nvmem_config.name = dev_name(dev);
        nvmem_config.dev = dev;
        nvmem_config.read_only = !writable;
@@ -717,9 +700,24 @@ static int at24_probe(struct i2c_client *client)
        nvmem_config.size = byte_len;
 
        at24->nvmem = devm_nvmem_register(dev, &nvmem_config);
-       if (IS_ERR(at24->nvmem)) {
-               err = PTR_ERR(at24->nvmem);
-               goto err_runtime_pm;
+       if (IS_ERR(at24->nvmem))
+               return PTR_ERR(at24->nvmem);
+
+       i2c_set_clientdata(client, at24);
+
+       /* enable runtime pm */
+       pm_runtime_set_active(dev);
+       pm_runtime_enable(dev);
+
+       /*
+        * Perform a one-byte test read to verify that the
+        * chip is functional.
+        */
+       err = at24_read(at24, 0, &test_byte, 1);
+       pm_runtime_idle(dev);
+       if (err) {
+               pm_runtime_disable(dev);
+               return -ENODEV;
        }
 
        dev_info(dev, "%u byte %s EEPROM, %s, %u bytes/write\n",
@@ -727,11 +725,6 @@ static int at24_probe(struct i2c_client *client)
                 writable ? "writable" : "read-only", at24->write_max);
 
        return 0;
-
-err_runtime_pm:
-       pm_runtime_disable(dev);
-
-       return err;
 }
 
 static int at24_remove(struct i2c_client *client)