From 395829c61a196a0821a703a49c4db3ac51daff73 Mon Sep 17 00:00:00 2001
From: Miaoqian Lin <linmq006@gmail.com>
Date: Mon, 7 Mar 2022 09:16:37 +0100
Subject: [PATCH] media: atmel: atmel-isc: Fix PM disable depth imbalance in atmel_isc_probe
Git-commit: 395829c61a196a0821a703a49c4db3ac51daff73
Patch-mainline: v5.19-rc1
References: git-fixes

The pm_runtime_enable will decrease power disable depth.
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().

Fixes: 0a0e265515db ("media: atmel: atmel-isc: split driver into driver base and isc")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/media/platform/atmel/atmel-sama5d2-isc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
index c5b9563e36cb..e9415495e738 100644
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -562,7 +562,7 @@ static int atmel_isc_probe(struct platform_device *pdev)
 	ret = clk_prepare_enable(isc->ispck);
 	if (ret) {
 		dev_err(dev, "failed to enable ispck: %d\n", ret);
-		goto cleanup_subdev;
+		goto disable_pm;
 	}
 
 	/* ispck should be greater or equal to hclock */
@@ -580,6 +580,9 @@ static int atmel_isc_probe(struct platform_device *pdev)
 unprepare_clk:
 	clk_disable_unprepare(isc->ispck);
 
+disable_pm:
+	pm_runtime_disable(dev);
+
 cleanup_subdev:
 	isc_subdev_cleanup(isc);
 
-- 
2.35.3