Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Dan Carpenter <dan.carpenter@oracle.com>,
        Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 119/191] Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume()
Date:   Tue, 27 Oct 2020 14:49:34 +0100
Message-Id: <20201027134915.421721907@linuxfoundation.org>
In-Reply-To: <20201027134909.701581493@linuxfoundation.org>
References: <20201027134909.701581493@linuxfoundation.org>
User-Agent: quilt/0.66
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 30df23c5ecdfb8da5b0bc17ceef67eff9e1b0957 ]

If imx6ul_tsc_init() fails then we need to clean up the clocks.

I reversed the "if (input_dev->users) {" condition to make the code a
bit simpler.

Fixes: 6cc527b05847 ("Input: imx6ul_tsc - propagate the errors")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200905124942.GC183976@mwanda
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/input/touchscreen/imx6ul_tsc.c | 27 +++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/drivers/input/touchscreen/imx6ul_tsc.c b/drivers/input/touchscreen/imx6ul_tsc.c
index ee82a975bfd29..5759c1592a456 100644
--- a/drivers/input/touchscreen/imx6ul_tsc.c
+++ b/drivers/input/touchscreen/imx6ul_tsc.c
@@ -542,20 +542,25 @@ static int __maybe_unused imx6ul_tsc_resume(struct device *dev)
 
 	mutex_lock(&input_dev->mutex);
 
-	if (input_dev->users) {
-		retval = clk_prepare_enable(tsc->adc_clk);
-		if (retval)
-			goto out;
-
-		retval = clk_prepare_enable(tsc->tsc_clk);
-		if (retval) {
-			clk_disable_unprepare(tsc->adc_clk);
-			goto out;
-		}
+	if (!input_dev->users)
+		goto out;
 
-		retval = imx6ul_tsc_init(tsc);
+	retval = clk_prepare_enable(tsc->adc_clk);
+	if (retval)
+		goto out;
+
+	retval = clk_prepare_enable(tsc->tsc_clk);
+	if (retval) {
+		clk_disable_unprepare(tsc->adc_clk);
+		goto out;
 	}
 
+	retval = imx6ul_tsc_init(tsc);
+	if (retval) {
+		clk_disable_unprepare(tsc->tsc_clk);
+		clk_disable_unprepare(tsc->adc_clk);
+		goto out;
+	}
 out:
 	mutex_unlock(&input_dev->mutex);
 	return retval;
-- 
2.25.1