[PATCH 5.17 376/772] media: atmel: atmel-isc: Fix PM disable depth imbalance in atmel_isc_probe

Greg Kroah-Hartman
2022-06-07T21:08:51Z

From: Miaoqian Lin <linmq006@gmail.com>

[ Upstream commit 395829c61a196a0821a703a49c4db3ac51daff73 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 1b2063cce0f7..949035cdb846 100644
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -538,7 +538,7 @@ 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 */
@@ -556,6 +556,9 @@ 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);

--
2.35.1