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Subject[PATCH] dmaengine: stm32-dmamux: Fix PM disable depth imbalance in stm32_dmamux_probe
Date
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: 4f3ceca254e0 ("dmaengine: stm32-dmamux: Add PM Runtime support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
drivers/dma/stm32-dmamux.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/stm32-dmamux.c b/drivers/dma/stm32-dmamux.c
index a42164389ebc..d5d55732adba 100644
--- a/drivers/dma/stm32-dmamux.c
+++ b/drivers/dma/stm32-dmamux.c
@@ -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);

--
2.17.1
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