[PATCH 5.10 211/452] media: st-delta: Fix PM disable depth imbalance in delta_probe

[Greg Kroah-Hartman]

From: Miaoqian Lin <linmq006@xxxxxxxxx>

[ Upstream commit 94e3dba710fe0afc772172305444250023fc2d30 ]

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: f386509e4959 ("[media] st-delta: STiH4xx multi-format video decoder v4l2 driver")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
Acked-by: Hugues Fruchet <hugues.fruchet@xxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/media/platform/sti/delta/delta-v4l2.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/sti/delta/delta-v4l2.c b/drivers/media/platform/sti/delta/delta-v4l2.c
index c691b3d81549..5da49a0ab70b 100644
--- a/drivers/media/platform/sti/delta/delta-v4l2.c
+++ b/drivers/media/platform/sti/delta/delta-v4l2.c
@@ -1862,7 +1862,7 @@ static int delta_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(delta->dev, "%s failed to initialize firmware ipc channel\n",
 			DELTA_PREFIX);
-		goto err;
+		goto err_pm_disable;
 	}
 
 	/* register all available decoders */
@@ -1876,7 +1876,7 @@ static int delta_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(delta->dev, "%s failed to register V4L2 device\n",
 			DELTA_PREFIX);
-		goto err;
+		goto err_pm_disable;
 	}
 
 	delta->work_queue = create_workqueue(DELTA_NAME);
@@ -1901,6 +1901,8 @@ static int delta_probe(struct platform_device *pdev)
 	destroy_workqueue(delta->work_queue);
 err_v4l2:
 	v4l2_device_unregister(&delta->v4l2_dev);
+err_pm_disable:
+	pm_runtime_disable(dev);
 err:
 	return ret;
 }
-- 
2.35.1