linux-kernel - [PATCH AUTOSEL 5.7 158/274] media: sun8i: Fix an error handling path in 'deinterlace_runtime

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Message-Id: <20200608230607.3361041-158-sashal@kernel.org>
Date:   Mon,  8 Jun 2020 19:04:11 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Chen-Yu Tsai <wens@...e.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Sasha Levin <sashal@...nel.org>, linux-media@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH AUTOSEL 5.7 158/274] media: sun8i: Fix an error handling path in 'deinterlace_runtime_resume()'

From: Christophe JAILLET <christophe.jaillet@...adoo.fr>

[ Upstream commit 62eedb356188376acd0368384a9b294d5180c00b ]

It is spurious to call 'clk_disable_unprepare()' when
'clk_prepare_enable()' has not been called yet.
Re-order the error handling path to avoid it.

Fixes: a4260ea49547 ("media: sun4i: Add H3 deinterlace driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
Acked-by: Chen-Yu Tsai <wens@...e.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
[hverkuil-cisco@...all.nl: err_exlusive_rate -> err_exclusive_rate]
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/media/platform/sunxi/sun8i-di/sun8i-di.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/sunxi/sun8i-di/sun8i-di.c b/drivers/media/platform/sunxi/sun8i-di/sun8i-di.c
index d78f6593ddd1..ba5d07886607 100644
--- a/drivers/media/platform/sunxi/sun8i-di/sun8i-di.c
+++ b/drivers/media/platform/sunxi/sun8i-di/sun8i-di.c
@@ -941,7 +941,7 @@ static int deinterlace_runtime_resume(struct device *device)
 	if (ret) {
 		dev_err(dev->dev, "Failed to enable bus clock\n");
 
-		goto err_exlusive_rate;
+		goto err_exclusive_rate;
 	}
 
 	ret = clk_prepare_enable(dev->mod_clk);
@@ -969,14 +969,14 @@ static int deinterlace_runtime_resume(struct device *device)
 
 	return 0;
 
-err_exlusive_rate:
-	clk_rate_exclusive_put(dev->mod_clk);
 err_ram_clk:
 	clk_disable_unprepare(dev->ram_clk);
 err_mod_clk:
 	clk_disable_unprepare(dev->mod_clk);
 err_bus_clk:
 	clk_disable_unprepare(dev->bus_clk);
+err_exclusive_rate:
+	clk_rate_exclusive_put(dev->mod_clk);
 
 	return ret;
 }
-- 
2.25.1