Commit e831c7ab authored by Miaoqian Lin's avatar Miaoqian Lin Committed by Vinod Koul
Browse files

dmaengine: stm32-dmamux: Fix PM disable depth imbalance in stm32_dmamux_probe 



The pm_runtime_enable will increase power disable depth.
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().

Fixes: 4f3ceca2 ("dmaengine: stm32-dmamux: Add PM Runtime support")
Signed-off-by: default avatarMiaoqian Lin <linmq006@gmail.com>
Reviewed-by: default avatarAmelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20220108085336.11992-1-linmq006@gmail.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 2d21543e

drivers/dma/stm32-dmamux.c

+3 −1
Original line number Diff line number Diff line
@@ -292,10 +292,12 @@ static int stm32_dmamux_probe(struct platform_device *pdev) 
	ret = of_dma_router_register(node, stm32_dmamux_route_allocate,

				     &stm32_dmamux->dmarouter);

	if (ret)

		goto err_clk;

		goto pm_disable;



	return 0;



pm_disable:

	pm_runtime_disable(&pdev->dev);

err_clk:

	clk_disable_unprepare(stm32_dmamux->clk);