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Date: Mon, 28 Dec 2020 13:41:17 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Zhang Qilong <zhangqilong3@...wei.com>, Mark Brown <broonie@...nel.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.10 079/717] spi: tegra20-sflash: fix reference leak in tegra_sflash_resume From: Zhang Qilong <zhangqilong3@...wei.com> [ Upstream commit 3482e797ab688da6703fe18d8bad52f94199f4f2 ] pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to pm_runtime_put_noidle will result in reference leak in tegra_sflash_resume, so we should fix it. Fixes: 8528547bcc336 ("spi: tegra: add spi driver for sflash controller") Signed-off-by: Zhang Qilong <zhangqilong3@...wei.com> Link: https://lore.kernel.org/r/20201103141323.5841-1-zhangqilong3@huawei.com Signed-off-by: Mark Brown <broonie@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/spi/spi-tegra20-sflash.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c index b59015c7c8a80..cfb7de7379376 100644 --- a/drivers/spi/spi-tegra20-sflash.c +++ b/drivers/spi/spi-tegra20-sflash.c @@ -552,6 +552,7 @@ static int tegra_sflash_resume(struct device *dev) ret = pm_runtime_get_sync(dev); if (ret < 0) { + pm_runtime_put_noidle(dev); dev_err(dev, "pm runtime failed, e = %d\n", ret); return ret; } -- 2.27.0
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