From: Dinghao Liu <dinghao....@zju.edu.cn> [ Upstream commit 5b78fac4b1ba731cf4177fdbc1e3a4661521bcd0 ]
pm_runtime_get_sync() increments the runtime PM usage counter even when it returns an error code. Thus a pairing decrement is needed on the error handling path to keep the counter balanced. Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn> Reviewed-by: Jon Hunter <jonath...@nvidia.com> Link: https://lore.kernel.org/r/20200624064626.19855-1-dinghao....@zju.edu.cn Signed-off-by: Vinod Koul <vk...@kernel.org> Signed-off-by: Sasha Levin <sas...@kernel.org> --- drivers/dma/tegra210-adma.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c index 045351f3549c1..86b45198fb962 100644 --- a/drivers/dma/tegra210-adma.c +++ b/drivers/dma/tegra210-adma.c @@ -583,6 +583,7 @@ static int tegra_adma_alloc_chan_resources(struct dma_chan *dc) ret = pm_runtime_get_sync(tdc2dev(tdc)); if (ret < 0) { + pm_runtime_put_noidle(tdc2dev(tdc)); free_irq(tdc->irq, tdc); return ret; } @@ -764,8 +765,10 @@ static int tegra_adma_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); ret = pm_runtime_get_sync(&pdev->dev); - if (ret < 0) + if (ret < 0) { + pm_runtime_put_noidle(&pdev->dev); goto rpm_disable; + } ret = tegra_adma_init(tdma); if (ret) -- 2.25.1
