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From:   Sasha Levin <sashal@kernel.org>
To:     linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc:     Kangjie Lu <kjlu@umn.edu>, Mark Brown <broonie@kernel.org>,
        Sasha Levin <sashal@kernel.org>, linux-omap@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 131/219] regulator: tps65910: fix a missing check of return value
Date:   Fri, 22 Nov 2019 00:47:43 -0500
Message-Id: <20191122054911.1750-124-sashal@kernel.org>
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From: Kangjie Lu <kjlu@umn.edu>

[ Upstream commit cd07e3701fa6a4c68f8493ee1d12caa18d46ec6a ]

tps65910_reg_set_bits() may fail. The fix checks if it fails, and if so,
returns with its error code.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/regulator/tps65910-regulator.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 02ccdaa226a73..5ebb6ee73f077 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -1102,8 +1102,10 @@ static int tps65910_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, pmic);
 
 	/* Give control of all register to control port */
-	tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL,
+	err = tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL,
 				DEVCTRL_SR_CTL_I2C_SEL_MASK);
+	if (err < 0)
+		return err;
 
 	switch (tps65910_chip_id(tps65910)) {
 	case TPS65910:
-- 
2.20.1