linux-kernel - [PATCH 08/31] spi: spi-qcom-qspi: fix potential mem leak in spi_geni

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Message-Id: <20210101165507.19486-9-tiny.windzz@gmail.com>
Date:   Fri,  1 Jan 2021 16:54:44 +0000
From:   Yangtao Li <tiny.windzz@...il.com>
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Subject: [PATCH 08/31] spi: spi-qcom-qspi: fix potential mem leak in spi_geni_probe()

We should use dev_pm_opp_put_clkname() to free opp table each time
dev_pm_opp_of_add_table() got error.

Signed-off-by: Yangtao Li <tiny.windzz@...il.com>
---
 drivers/spi/spi-geni-qcom.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c
index 512e925d5ea4..2b5a164fecb9 100644
--- a/drivers/spi/spi-geni-qcom.c
+++ b/drivers/spi/spi-geni-qcom.c
@@ -620,9 +620,12 @@ static int spi_geni_probe(struct platform_device *pdev)
 		return PTR_ERR(mas->se.opp_table);
 	/* OPP table is optional */
 	ret = dev_pm_opp_of_add_table(&pdev->dev);
-	if (ret && ret != -ENODEV) {
-		dev_err(&pdev->dev, "invalid OPP table in device tree\n");
-		goto put_clkname;
+	if (ret) {
+		dev_pm_opp_put_clkname(mas->se.opp_table);
+		if (ret != -ENODEV) {
+			dev_err(&pdev->dev, "invalid OPP table in device tree\n");
+			return ret;
+		}
 	}
 
 	spi->bus_num = -1;
@@ -675,7 +678,6 @@ static int spi_geni_probe(struct platform_device *pdev)
 spi_geni_probe_runtime_disable:
 	pm_runtime_disable(dev);
 	dev_pm_opp_of_remove_table(&pdev->dev);
-put_clkname:
 	dev_pm_opp_put_clkname(mas->se.opp_table);
 	return ret;
 }
-- 
2.25.1