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* [PATCH -next] spi: omap-100k: Fix reference leak to master
@ 2021-04-09  8:29 Wei Yongjun
  2021-04-09 16:22 ` Mark Brown
  0 siblings, 1 reply; 2+ messages in thread
From: Wei Yongjun @ 2021-04-09  8:29 UTC (permalink / raw)
  To: weiyongjun1, Mark Brown; +Cc: linux-spi, kernel-janitors, Hulk Robot

Call spi_master_get() holds the reference count to master device, thus
we need an additional spi_master_put() call to reduce the reference
count, otherwise we will leak a reference to master.

This commit fix it by removing the unnecessary spi_master_get().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/spi/spi-omap-100k.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c
index 189fd2dda37b..7062f2902253 100644
--- a/drivers/spi/spi-omap-100k.c
+++ b/drivers/spi/spi-omap-100k.c
@@ -424,7 +424,7 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
 
 static int omap1_spi100k_remove(struct platform_device *pdev)
 {
-	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
+	struct spi_master *master = platform_get_drvdata(pdev);
 	struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
 
 	pm_runtime_disable(&pdev->dev);
@@ -438,7 +438,7 @@ static int omap1_spi100k_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int omap1_spi100k_runtime_suspend(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
 
 	clk_disable_unprepare(spi100k->ick);
@@ -449,7 +449,7 @@ static int omap1_spi100k_runtime_suspend(struct device *dev)
 
 static int omap1_spi100k_runtime_resume(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct omap1_spi100k *spi100k = spi_master_get_devdata(master);
 	int ret;
 


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2021-04-09  8:29 [PATCH -next] spi: omap-100k: Fix reference leak to master Wei Yongjun
2021-04-09 16:22 ` Mark Brown

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