linux-kernel - [PATCH v2 2/2] spi: meson-spicc: fix a wrong goto jump for avoiding memory leak.

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Message-Id: <1623562172-22056-1-git-send-email-zpershuai@gmail.com>
Date:   Sun, 13 Jun 2021 13:29:32 +0800
From:   zpershuai <zpershuai@...il.com>
To:     Mark Brown <broonie@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     zpershuai <zpershuai@...il.com>
Subject: [PATCH v2 2/2] spi: meson-spicc: fix a wrong goto jump for avoiding memory leak.

In meson_spifc_probe function, when enable the device pclk clock is
error, it should use clk_disable_unprepare to release the core clock.

Signed-off-by: zpershuai <zpershuai@...il.com>
---
 drivers/spi/spi-meson-spicc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-meson-spicc.c b/drivers/spi/spi-meson-spicc.c
index d675334..b2c4621 100644
--- a/drivers/spi/spi-meson-spicc.c
+++ b/drivers/spi/spi-meson-spicc.c
@@ -725,7 +725,7 @@ static int meson_spicc_probe(struct platform_device *pdev)
 	ret = clk_prepare_enable(spicc->pclk);
 	if (ret) {
 		dev_err(&pdev->dev, "pclk clock enable failed\n");
-		goto out_master;
+		goto out_core_clk;
 	}
 
 	device_reset_optional(&pdev->dev);
@@ -764,9 +764,11 @@ static int meson_spicc_probe(struct platform_device *pdev)
 	return 0;
 
 out_clk:
-	clk_disable_unprepare(spicc->core);
 	clk_disable_unprepare(spicc->pclk);
 
+out_core_clk:
+	clk_disable_unprepare(spicc->core);
+
 out_master:
 	spi_master_put(master);
 
-- 
2.7.4