From: Yu Kuai <yukuai3@xxxxxxxxxx> [ Upstream commit 1da569fa7ec8cb0591c74aa3050d4ea1397778b4 ] 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 moving the error_pm label above the pm_runtime_put() in the error path. Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx> Link: https://lore.kernel.org/r/20210706124521.1371901-1-yukuai3@xxxxxxxxxx Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/dma/sh/usb-dmac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/sh/usb-dmac.c b/drivers/dma/sh/usb-dmac.c index 8f7ceb698226..1cc06900153e 100644 --- a/drivers/dma/sh/usb-dmac.c +++ b/drivers/dma/sh/usb-dmac.c @@ -855,8 +855,8 @@ static int usb_dmac_probe(struct platform_device *pdev) error: of_dma_controller_free(pdev->dev.of_node); - pm_runtime_put(&pdev->dev); error_pm: + pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); return ret; } -- 2.30.2
