From: Binbin Zhou <zhoubinbin@loongson.cn>
Date: Tue, 3 Jun 2025 12:25:54 +0000 (+0800)
Subject: mmc: dw_mmc: Use devm_mmc_alloc_host() helper
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=17a71a3f90984307f0059ebe51f175dc5a5d5942;p=thirdparty%2Flinux.git

mmc: dw_mmc: Use devm_mmc_alloc_host() helper

Use new function devm_mmc_alloc_host() to simplify the code.

Cc: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/5179b0e39cf2cabbb41ed2de51190913628a7da0.1748933789.git.zhoubinbin@loongson.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 9884922377078..c5db92bbb0946 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -3008,7 +3008,7 @@ static int dw_mci_init_slot(struct dw_mci *host)
 	struct dw_mci_slot *slot;
 	int ret;
 
-	mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev);
+	mmc = devm_mmc_alloc_host(host->dev, sizeof(*slot));
 	if (!mmc)
 		return -ENOMEM;
 
@@ -3024,18 +3024,18 @@ static int dw_mci_init_slot(struct dw_mci *host)
 	/*if there are external regulators, get them*/
 	ret = mmc_regulator_get_supply(mmc);
 	if (ret)
-		goto err_host_allocated;
+		return ret;
 
 	if (!mmc->ocr_avail)
 		mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
 
 	ret = mmc_of_parse(mmc);
 	if (ret)
-		goto err_host_allocated;
+		return ret;
 
 	ret = dw_mci_init_slot_caps(slot);
 	if (ret)
-		goto err_host_allocated;
+		return ret;
 
 	/* Useful defaults if platform data is unset. */
 	if (host->use_dma == TRANS_MODE_IDMAC) {
@@ -3065,17 +3065,13 @@ static int dw_mci_init_slot(struct dw_mci *host)
 
 	ret = mmc_add_host(mmc);
 	if (ret)
-		goto err_host_allocated;
+		return ret;
 
 #if defined(CONFIG_DEBUG_FS)
 	dw_mci_init_debugfs(slot);
 #endif
 
 	return 0;
-
-err_host_allocated:
-	mmc_free_host(mmc);
-	return ret;
 }
 
 static void dw_mci_cleanup_slot(struct dw_mci_slot *slot)
@@ -3083,7 +3079,6 @@ static void dw_mci_cleanup_slot(struct dw_mci_slot *slot)
 	/* Debugfs stuff is cleaned up by mmc core */
 	mmc_remove_host(slot->mmc);
 	slot->host->slot = NULL;
-	mmc_free_host(slot->mmc);
 }
 
 static void dw_mci_init_dma(struct dw_mci *host)