[PATCH] spi: mtk-nor: fix runtime PM usage count leak in probe error path

Felix Gu ustc.gu at gmail.com
Fri Sep 4 08:51:29 PDT 2026


mtk_nor_probe() takes a runtime PM reference with
pm_runtime_get_noresume() before registering the controller, but the
error path never drops it.

Balance the get with pm_runtime_put_noidle() in the error path.

Fixes: 3bfd9103c7af ("spi: spi-mtk-nor: Add power management support")
Signed-off-by: Felix Gu <ustc.gu at gmail.com>
---
 drivers/spi/spi-mtk-nor.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-mtk-nor.c b/drivers/spi/spi-mtk-nor.c
index 63f5139176c8..6b6e55d68048 100644
--- a/drivers/spi/spi-mtk-nor.c
+++ b/drivers/spi/spi-mtk-nor.c
@@ -929,6 +929,7 @@ static int mtk_nor_probe(struct platform_device *pdev)
 	return 0;
 
 err_probe:
+	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_dont_use_autosuspend(&pdev->dev);

---
base-commit: 9d80aa4617b32f5054c5aa471d06b66704854935
change-id: 20260904-mtk-nor-000ff9cb886f

Best regards,
--  
Felix Gu <ustc.gu at gmail.com>




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