From c09af3877b538f8fccb712550c08a80a52cb8300 Mon Sep 17 00:00:00 2001 From: Zou Wei Date: Mon, 31 May 2021 14:36:03 +0800 Subject: dmaengine: rcar-dmac: Fix PM reference leak in rcar_dmac_probe() [ Upstream commit dea8464ddf553803382efb753b6727dbf3931d06 ] 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 Signed-off-by: Zou Wei Reviewed-by: Laurent Pinchart Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/1622442963-54095-1-git-send-email-zou_wei@huawei.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/sh/rcar-dmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 3993ab65c62c..89eb9ea25814 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -1855,7 +1855,7 @@ static int rcar_dmac_probe(struct platform_device *pdev) /* Enable runtime PM and initialize the device. */ pm_runtime_enable(&pdev->dev); - ret = pm_runtime_get_sync(&pdev->dev); + ret = pm_runtime_resume_and_get(&pdev->dev); if (ret < 0) { dev_err(&pdev->dev, "runtime PM get sync failed (%d)\n", ret); return ret; -- cgit v1.2.3