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From:   Miaoqian Lin <linmq006@gmail.com>
To:     Sylwester Nawrocki <s.nawrocki@samsung.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Alim Akhtar <alim.akhtar@samsung.com>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        Younghwan Joo <yhwan.joo@samsung.com>,
        linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     linmq006@gmail.com
Subject: [PATCH] media: exynos4-is:  Fix PM disable depth imbalance in fimc_is_probe
Date:   Mon,  7 Mar 2022 07:52:06 +0000
Message-Id: <20220307075206.10737-1-linmq006@gmail.com>
Precedence: bulk

If probe fails then we need to call pm_runtime_disable() to balance
out the previous pm_runtime_enable() call.

Fixes: 9a761e436843 ("[media] exynos4-is: Add Exynos4x12 FIMC-IS driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/media/platform/exynos4-is/fimc-is.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/exynos4-is/fimc-is.c b/drivers/media/platform/exynos4-is/fimc-is.c
index e55e411038f4..81b290dace3a 100644
--- a/drivers/media/platform/exynos4-is/fimc-is.c
+++ b/drivers/media/platform/exynos4-is/fimc-is.c
@@ -830,7 +830,7 @@ static int fimc_is_probe(struct platform_device *pdev)
 
 	ret = pm_runtime_resume_and_get(dev);
 	if (ret < 0)
-		goto err_irq;
+		goto err_pm_disable;
 
 	vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32));
 
@@ -864,6 +864,8 @@ static int fimc_is_probe(struct platform_device *pdev)
 	pm_runtime_put_noidle(dev);
 	if (!pm_runtime_enabled(dev))
 		fimc_is_runtime_suspend(dev);
+err_pm_disable:
+	pm_runtime_disable(dev);
 err_irq:
 	free_irq(is->irq, is);
 err_clk:
-- 
2.17.1