From: Wei Yongjun <weiyongjun1@huawei.com>
To: <weiyongjun1@huawei.com>, Mark Brown <broonie@kernel.org>
Cc: <linux-spi@vger.kernel.org>, <kernel-janitors@vger.kernel.org>,
Hulk Robot <hulkci@huawei.com>
Subject: [PATCH -next] spi: omap-100k: Fix reference leak to master
Date: Fri, 9 Apr 2021 08:29:54 +0000 [thread overview]
Message-ID: <20210409082954.2906933-1-weiyongjun1@huawei.com> (raw)
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;
next reply other threads:[~2021-04-09 8:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 8:29 Wei Yongjun [this message]
2021-04-09 16:22 ` [PATCH -next] spi: omap-100k: Fix reference leak to master Mark Brown
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