linux-kernel - [PATCH 5/7] Revert "regulator: tps65910: fix a missing check of return value"

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Date:   Thu, 29 Apr 2021 15:08:09 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kangjie Lu <kjlu@....edu>, Mark Brown <broonie@...nel.org>
Subject: [PATCH 5/7] Revert "regulator: tps65910: fix a missing check of return value"

This reverts commit cd07e3701fa6a4c68f8493ee1d12caa18d46ec6a.

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 submitted to 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) but later
withdrawn.

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: Kangjie Lu <kjlu@....edu>
Cc: Mark Brown <broonie@...nel.org>
---
 drivers/regulator/tps65910-regulator.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 1d5b0a1b86f7..8ad1ecc1559f 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -1098,10 +1098,8 @@ static int tps65910_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, pmic);

 	/* Give control of all register to control port */
-	err = regmap_set_bits(pmic->mfd->regmap, TPS65910_DEVCTRL,
+	regmap_set_bits(pmic->mfd->regmap, TPS65910_DEVCTRL,
 				DEVCTRL_SR_CTL_I2C_SEL_MASK);
-	if (err < 0)
-		return err;

 	switch (tps65910_chip_id(tps65910)) {
 	case TPS65910:
-- 
2.31.1