mmc: meson-mx-sdio: Use devm_mmc_alloc_host() helper

Use new function devm_mmc_alloc_host() to simplify the code.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Author: AaronDot

drivers/mmc/host/meson-mx-sdio.c

@@ -648,7 +648,7 @@ static int meson_mx_mmc_probe(struct platform_device *pdev)
 	else if (IS_ERR(slot_pdev))
 		return PTR_ERR(slot_pdev);
 
-	mmc = mmc_alloc_host(sizeof(*host), &slot_pdev->dev);
+	mmc = devm_mmc_alloc_host(&slot_pdev->dev, sizeof(*host));
 	if (!mmc) {
 		ret = -ENOMEM;
 		goto error_unregister_slot_pdev;
@@ -667,38 +667,38 @@ static int meson_mx_mmc_probe(struct platform_device *pdev)
 					     &meson_mx_sdio_regmap_config);
 	if (IS_ERR(host->regmap)) {
 		ret = PTR_ERR(host->regmap);
-		goto error_free_mmc;
+		goto error_unregister_slot_pdev;
 	}
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		ret = irq;
-		goto error_free_mmc;
+		goto error_unregister_slot_pdev;
 	}
 
 	ret = devm_request_threaded_irq(host->controller_dev, irq,
 					meson_mx_mmc_irq,
 					meson_mx_mmc_irq_thread, IRQF_ONESHOT,
 					NULL, host);
 	if (ret)
-		goto error_free_mmc;
+		goto error_unregister_slot_pdev;
 
 	core_clk = devm_clk_get_enabled(host->controller_dev, "core");
 	if (IS_ERR(core_clk)) {
 		ret = PTR_ERR(core_clk);
-		goto error_free_mmc;
+		goto error_unregister_slot_pdev;
 	}
 
 	host->cfg_div_clk = meson_mx_mmc_register_clk(&pdev->dev, base);
 	if (IS_ERR(host->cfg_div_clk)) {
 		ret = PTR_ERR(host->cfg_div_clk);
-		goto error_free_mmc;
+		goto error_unregister_slot_pdev;
 	}
 
 	ret = clk_prepare_enable(host->cfg_div_clk);
 	if (ret) {
 		dev_err(host->controller_dev, "Failed to enable MMC clock\n");
-		goto error_free_mmc;
+		goto error_unregister_slot_pdev;
 	}
 
 	conf = 0;
@@ -718,8 +718,6 @@ static int meson_mx_mmc_probe(struct platform_device *pdev)
 
 error_disable_div_clk:
 	clk_disable_unprepare(host->cfg_div_clk);
-error_free_mmc:
-	mmc_free_host(mmc);
 error_unregister_slot_pdev:
 	of_platform_device_destroy(&slot_pdev->dev, NULL);
 	return ret;
@@ -737,8 +735,6 @@ static void meson_mx_mmc_remove(struct platform_device *pdev)
 	of_platform_device_destroy(slot_dev, NULL);
 
 	clk_disable_unprepare(host->cfg_div_clk);
-
-	mmc_free_host(host->mmc);
 }
 
 static const struct of_device_id meson_mx_mmc_of_match[] = {