linux-kernel - [PATCH] mmc: wmt-sdmmc: Fix an error handling path in wmt_mci

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Message-Id: <bf2e2e69226b20d173cce66287f59488fd47474b.1646588375.git.christophe.jaillet@wanadoo.fr>
Date:   Sun,  6 Mar 2022 18:44:56 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     ulf.hansson@...aro.org, cjb@...top.org
Cc:     linux-mmc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH] mmc: wmt-sdmmc: Fix an error handling path in wmt_mci_probe()

A dma_free_coherent() call is missing in the error handling path of the
probe, as already done in the remove function.

Fixes: 3a96dff0f828 ("mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
I've not been able to find a Fixes tag because of the renaming of
function and files.
However, it looks old (before 2008)
---
 drivers/mmc/host/wmt-sdmmc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index 163ac9df8cca..8e18f01c0938 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -863,6 +863,8 @@ static int wmt_mci_probe(struct platform_device *pdev)
 	return 0;
 fail6:
 	clk_put(priv->clk_sdmmc);
+	dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16,
+			  priv->dma_desc_buffer, priv->dma_desc_device_addr);
 fail5:
 	free_irq(dma_irq, priv);
 fail4:
-- 
2.32.0