[PATCH AUTOSEL 6.1 13/19] dmaengine: ste_dma40: Fix PM disable depth imbalance in d40_probe
From: Sasha Levin <sashal@kernel.org>
Date: 2023-10-18 14:16:30
Also in:
linux-arm-kernel, lkml, stable
Subsystem:
arm/nomadik/ux500 architectures, dma generic offload engine subsystem, the rest · Maintainers:
Linus Walleij, Vinod Koul, Linus Torvalds
From: Zhang Shurong <redacted> [ Upstream commit 0618c077a8c20e8c81e367988f70f7e32bb5a717 ] The pm_runtime_enable will increase power disable depth. Thus a pairing decrement is needed on the error handling path to keep it balanced according to context. We fix it by calling pm_runtime_disable when error returns. Signed-off-by: Zhang Shurong <redacted> Reviewed-by: Linus Walleij <redacted> Link: https://lore.kernel.org/r/tencent_DD2D371DB5925B4B602B1E1D0A5FA88F1208@qq.com (local) Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/dma/ste_dma40.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 3b09fdc507e04..594b016e76efc 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c@@ -3697,6 +3697,7 @@ static int __init d40_probe(struct platform_device *pdev) regulator_disable(base->lcpa_regulator); regulator_put(base->lcpa_regulator); } + pm_runtime_disable(base->dev); kfree(base->lcla_pool.alloc_map); kfree(base->lookup_log_chans);
--
2.40.1