linux-kernel - [PATCH 030/190] Revert "ASoC: tegra: Fix reference count leaks."

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Date:   Wed, 21 Apr 2021 14:58:25 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Qiushi Wu <wu000273@....edu>,
        Jon Hunter <jonathanh@...dia.com>,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH 030/190] Revert "ASoC: tegra: Fix reference count leaks."

This reverts commit deca195383a6085be62cb453079e03e04d618d6e.

Commits from @umn.edu addresses have been found to be submitted in "bad
faith" to try to test the kernel community's ability to review "known
malicious" changes.  The result of these submissions can be found in a
paper published at the 42nd IEEE Symposium on Security and Privacy
entitled, "Open Source Insecurity: Stealthily Introducing
Vulnerabilities via Hypocrite Commits" written by Qiushi Wu (University
of Minnesota) and Kangjie Lu (University of Minnesota).

Because of this, all submissions from this group must be reverted from
the kernel tree and will need to be re-reviewed again to determine if
they actually are a valid fix.  Until that work is complete, remove this
change to ensure that no problems are being introduced into the
codebase.

Cc: Qiushi Wu <wu000273@....edu>
Cc: Jon Hunter <jonathanh@...dia.com>
Cc: https
Cc: Mark Brown <broonie@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 sound/soc/tegra/tegra30_ahub.c | 4 +---
 sound/soc/tegra/tegra30_i2s.c  | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index 9ef05ca4f6c4..b116b05e4e72 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -657,10 +657,8 @@ static int tegra30_ahub_resume(struct device *dev)
 	int ret;

 	ret = pm_runtime_get_sync(dev);
-	if (ret < 0) {
-		pm_runtime_put(dev);
+	if (ret < 0)
 		return ret;
-	}
 	ret = regcache_sync(ahub->regmap_ahub);
 	ret |= regcache_sync(ahub->regmap_apbif);
 	pm_runtime_put(dev);
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index 6740df541508..3187a0f0c07a 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -567,10 +567,8 @@ static int tegra30_i2s_resume(struct device *dev)
 	int ret;

 	ret = pm_runtime_get_sync(dev);
-	if (ret < 0) {
-		pm_runtime_put(dev);
+	if (ret < 0)
 		return ret;
-	}
 	ret = regcache_sync(i2s->regmap);
 	pm_runtime_put(dev);

-- 
2.31.1