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From:   Sasha Levin <sashal@kernel.org>
To:     stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     YueHaibing <yuehaibing@huawei.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.4 13/32] pinctrl: qcom: spmi-mpp: Fix err handling of pmic_mpp_set_mux
Date:   Wed, 31 Oct 2018 19:11:18 -0400
Message-Id: <20181031231137.29429-13-sashal@kernel.org>
In-Reply-To: <20181031231137.29429-1-sashal@kernel.org>
References: <20181031231137.29429-1-sashal@kernel.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit 69f8455f6cc78fa6cdf80d0105d7a748106271dc ]

'ret' should be returned while pmic_mpp_write_mode_ctl fails.

Fixes: 0e948042c420 ("pinctrl: qcom: spmi-mpp: Implement support for sink mode")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pinctrl/qcom/pinctrl-spmi-mpp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
index 9ce0e30e33e8..0643abfd8a50 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
@@ -321,6 +321,8 @@ static int pmic_mpp_set_mux(struct pinctrl_dev *pctldev, unsigned function,
 	pad->function = function;
 
 	ret = pmic_mpp_write_mode_ctl(state, pad);
+	if (ret < 0)
+		return ret;
 
 	val = pad->is_enabled << PMIC_MPP_REG_MASTER_EN_SHIFT;
 
-- 
2.17.1