ret = regmap_multi_reg_write(rt5682->regmap, patch_list,
                                    ARRAY_SIZE(patch_list));
-       if (ret != 0)
+       if (ret)
                dev_warn(dev, "Failed to apply regmap patch: %d\n", ret);
 
        regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000);
 
        rt5682 = devm_kzalloc(&i2c->dev, sizeof(struct rt5682_priv),
                GFP_KERNEL);
-
-       if (rt5682 == NULL)
+       if (!rt5682)
                return -ENOMEM;
 
        i2c_set_clientdata(i2c, rt5682);
 
        ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(rt5682->supplies),
                                      rt5682->supplies);
-       if (ret != 0) {
+       if (ret) {
                dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
                return ret;
        }
 
        ret = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies),
                                    rt5682->supplies);
-       if (ret != 0) {
+       if (ret) {
                dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
                return ret;
        }
 
        ret = regmap_multi_reg_write(rt5682->regmap, patch_list,
                                    ARRAY_SIZE(patch_list));
-       if (ret != 0)
+       if (ret)
                dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);
 
        regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000);