[PATCH] media: mtk-vpu: Fix a resource leak in the error handling path of 'mtk_vpu_probe()'

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A successful 'clk_prepare()' call should be balanced by a corresponding
'clk_unprepare()' call in the error handling path of the probe, as already
done in the remove function.

Update the error handling path accordingly.

Fixes: 3003a180ef6b ("[media] VPU: mediatek: support Mediatek VPU")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
 drivers/media/platform/mtk-vpu/mtk_vpu.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mtk-vpu/mtk_vpu.c b/drivers/media/platform/mtk-vpu/mtk_vpu.c
index ec290dde59cf..7f1647da0ade 100644
--- a/drivers/media/platform/mtk-vpu/mtk_vpu.c
+++ b/drivers/media/platform/mtk-vpu/mtk_vpu.c
@@ -848,7 +848,8 @@ static int mtk_vpu_probe(struct platform_device *pdev)
 	vpu->wdt.wq = create_singlethread_workqueue("vpu_wdt");
 	if (!vpu->wdt.wq) {
 		dev_err(dev, "initialize wdt workqueue failed\n");
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto clk_unprepare;
 	}
 	INIT_WORK(&vpu->wdt.ws, vpu_wdt_reset_func);
 	mutex_init(&vpu->vpu_mutex);
@@ -942,6 +943,8 @@ static int mtk_vpu_probe(struct platform_device *pdev)
 	vpu_clock_disable(vpu);
 workqueue_destroy:
 	destroy_workqueue(vpu->wdt.wq);
+clk_unprepare:
+	clk_unprepare(vpu->clk);
 
 	return ret;
 }
-- 
2.30.2




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