nvmem: sunxi_sid: use devm_nvmem_register()

Use the resource managed variant of nvmem_register().

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
index 4d0b7e7..1310f8a 100644 (file)
--- a/drivers/nvmem/sunxi_sid.c
+++ b/drivers/nvmem/sunxi_sid.c
@@ -181,15 +181,13 @@ static int sunxi_sid_probe(struct platform_device *pdev)
        else
                econfig.reg_read = sunxi_sid_read;
        econfig.priv = sid;
-       nvmem = nvmem_register(&econfig);
+       nvmem = devm_nvmem_register(dev, &econfig);
        if (IS_ERR(nvmem))
                return PTR_ERR(nvmem);
 
        randomness = kzalloc(size, GFP_KERNEL);
-       if (!randomness) {
-               ret = -ENOMEM;
-               goto err_unreg_nvmem;
-       }
+       if (!randomness)
+               return -ENOMEM;
 
        for (i = 0; i < size; i++)
                econfig.reg_read(sid, i, &randomness[i], 1);
@@ -200,17 +198,6 @@ static int sunxi_sid_probe(struct platform_device *pdev)
        platform_set_drvdata(pdev, nvmem);
 
        return 0;
-
-err_unreg_nvmem:
-       nvmem_unregister(nvmem);
-       return ret;
-}
-
-static int sunxi_sid_remove(struct platform_device *pdev)
-{
-       struct nvmem_device *nvmem = platform_get_drvdata(pdev);
-
-       return nvmem_unregister(nvmem);
 }
 
 static const struct sunxi_sid_cfg sun4i_a10_cfg = {
@@ -243,7 +230,6 @@ MODULE_DEVICE_TABLE(of, sunxi_sid_of_match);
 
 static struct platform_driver sunxi_sid_driver = {
        .probe = sunxi_sid_probe,
-       .remove = sunxi_sid_remove,
        .driver = {
                .name = "eeprom-sunxi-sid",
                .of_match_table = sunxi_sid_of_match,