This is a note to let you know that I've just added the patch titled spi: omap-100k: Fix reference leak to master to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: spi-omap-100k-fix-reference-leak-to-master.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 4dfd6ead81f1bc3bcf7b5da50b2792c510613621 Author: Wei Yongjun <weiyongjun1@xxxxxxxxxx> Date: Fri Apr 9 08:29:54 2021 +0000 spi: omap-100k: Fix reference leak to master [ Upstream commit a23faea76d4cf5f75decb574491e66f9ecd707e7 ] 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@xxxxxxxxxx> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210409082954.2906933-1-weiyongjun1@xxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c index 36a4922a134a..ccd817ee4917 100644 --- a/drivers/spi/spi-omap-100k.c +++ b/drivers/spi/spi-omap-100k.c @@ -424,7 +424,7 @@ err: 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;