linux-kernel - [PATCH 5.10 210/452] media: exynos4-is: Fix PM disable depth imbalance in fimc_is

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Date:   Tue,  7 Jun 2022 19:01:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Miaoqian Lin <linmq006@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 210/452] media: exynos4-is: Fix PM disable depth imbalance in fimc_is_probe

From: Miaoqian Lin <linmq006@...il.com>

[ Upstream commit 5c0db68ce0faeb000c3540d095eb272d671a6e03 ]

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@...il.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 d26fa5967d82..d4b31b3c9282 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:
-- 
2.35.1