]> git.baikalelectronics.ru Git - kernel.git/commit
dmaengine: stm32-mdma: fix PM reference leak in stm32_mdma_alloc_chan_resourc()
authorYu Kuai <yukuai3@huawei.com>
Mon, 17 May 2021 08:18:24 +0000 (16:18 +0800)
committerVinod Koul <vkoul@kernel.org>
Mon, 31 May 2021 04:03:09 +0000 (09:33 +0530)
commit42b0f48ef9440c2b5e99915af16ddbefae1be368
tree2a15740118d9ac385e7cbe58cebb43311504544d
parent5eaf547310cf82f0d47411cc50936e3947573001
dmaengine: stm32-mdma: fix PM reference leak in stm32_mdma_alloc_chan_resourc()

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 replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20210517081826.1564698-2-yukuai3@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
drivers/dma/stm32-mdma.c