linux-kernel - [PATCH] [media] exynos4-is: fix using wrong clk_disable() in fimc_is_enable

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Date:   Fri, 6 May 2022 17:28:09 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        <linux-samsung-soc@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-media@...r.kernel.org>
CC:     <s.nawrocki@...sung.com>, <mchehab@...nel.org>
Subject: [PATCH] [media] exynos4-is: fix using wrong clk_disable() in fimc_is_enable_clocks()

If clk is enabled by clk_prepare_enable(), it should be disabled
by clk_disable_unprepare().

Fixes: b4155d7d5b2c ("[media] exynos4-is: Ensure fimc-is clocks are not enabled until properly configured")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/media/platform/samsung/exynos4-is/fimc-is.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-is.c b/drivers/media/platform/samsung/exynos4-is/fimc-is.c
index e55e411038f4..8e88b0f6662d 100644
--- a/drivers/media/platform/samsung/exynos4-is/fimc-is.c
+++ b/drivers/media/platform/samsung/exynos4-is/fimc-is.c
@@ -140,7 +140,7 @@ static int fimc_is_enable_clocks(struct fimc_is *is)
 			dev_err(&is->pdev->dev, "clock %s enable failed\n",
 				fimc_is_clocks[i]);
 			for (--i; i >= 0; i--)
-				clk_disable(is->clocks[i]);
+				clk_disable_unprepare(is->clocks[i]);
 			return ret;
 		}
 		pr_debug("enabled clock: %s\n", fimc_is_clocks[i]);
-- 
2.25.1