linux-kernel - [PATCH 1/2] mmc: uniphier-sd: Fix an error handling path in uniphier_sd

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Date:   Sat, 20 Feb 2021 15:29:35 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     ulf.hansson@...aro.org, wsa+renesas@...g-engineering.com,
        yoshihiro.shimoda.uh@...esas.com, kernel@...il.dk,
        dianders@...omium.org, yamada.masahiro@...ionext.com,
        linux-arm-kernel@...ts.infradead.org
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH 1/2] mmc: uniphier-sd: Fix an error handling path in uniphier_sd_probe()

A 'uniphier_sd_clk_enable()' call should be balanced by a corresponding
'uniphier_sd_clk_disable()' call.
This is done in the remove function, but not in the error handling path of
the probe.

Add the missing call.

Fixes: 3fd784f745dd ("mmc: uniphier-sd: add UniPhier SD/eMMC controller driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/mmc/host/uniphier-sd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/uniphier-sd.c b/drivers/mmc/host/uniphier-sd.c
index 2413b6750cec..6f0f05466917 100644
--- a/drivers/mmc/host/uniphier-sd.c
+++ b/drivers/mmc/host/uniphier-sd.c
@@ -635,7 +635,7 @@ static int uniphier_sd_probe(struct platform_device *pdev)
 
 	ret = tmio_mmc_host_probe(host);
 	if (ret)
-		goto free_host;
+		goto disable_clk;
 
 	ret = devm_request_irq(dev, irq, tmio_mmc_irq, IRQF_SHARED,
 			       dev_name(dev), host);
@@ -646,6 +646,8 @@ static int uniphier_sd_probe(struct platform_device *pdev)
 
 remove_host:
 	tmio_mmc_host_remove(host);
+disable_clk:
+	uniphier_sd_clk_disable(host);
 free_host:
 	tmio_mmc_host_free(host);
 
-- 
2.27.0