[PATCH 5.12 116/384] spi: qup: fix PM reference leak in spi_qup_remove()
From: Greg Kroah-Hartman
Date: Mon May 10 2021 - 08:17:07 EST
From: Wang Li <wangli74@xxxxxxxxxx>
[ Upstream commit cec77e0a249892ceb10061bf17b63f9fb111d870 ]
pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wang Li <wangli74@xxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210409095458.29921-1-wangli74@xxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/spi/spi-qup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index 8dcb2e70735c..d39dec6d1c91 100644
--- a/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@ -1263,7 +1263,7 @@ static int spi_qup_remove(struct platform_device *pdev)
struct spi_qup *controller = spi_master_get_devdata(master);
int ret;
- ret = pm_runtime_get_sync(&pdev->dev);
+ ret = pm_runtime_resume_and_get(&pdev->dev);
if (ret < 0)
return ret;
--
2.30.2