diff mbox series

[-next] dmaengine: sprd: Fix PM reference leak in sprd_dma_probe()

Message ID 1622443118-54216-1-git-send-email-zou_wei@huawei.com (mailing list archive)
State New
Headers show
Series [-next] dmaengine: sprd: Fix PM reference leak in sprd_dma_probe() | expand

Commit Message

Zou Wei May 31, 2021, 6:38 a.m. UTC
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@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
---
 drivers/dma/sprd-dma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index 0ef5ca8..65dde39 100644
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -1203,7 +1203,7 @@  static int sprd_dma_probe(struct platform_device *pdev)
 	pm_runtime_set_active(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 
-	ret = pm_runtime_get_sync(&pdev->dev);
+	ret = pm_runtime_resume_and_get(&pdev->dev);
 	if (ret < 0)
 		goto err_rpm;
 
@@ -1238,7 +1238,7 @@  static int sprd_dma_remove(struct platform_device *pdev)
 	struct sprd_dma_chn *c, *cn;
 	int ret;
 
-	ret = pm_runtime_get_sync(&pdev->dev);
+	ret = pm_runtime_resume_and_get(&pdev->dev);
 	if (ret < 0)
 		return ret;