dmaengine: zynqmp_dma: Fix PM reference leak in zynqmp_dma_alloc_chan_resourc()
authorYu Kuai <yukuai3@huawei.com>
Mon, 17 May 2021 08:18:26 +0000 (16:18 +0800)
committerSasha Levin <sashal@kernel.org>
Wed, 30 Jun 2021 12:47:18 +0000 (08:47 -0400)
commit86f3e72dcb721675216a8a6fa5a3d669ba79c6a0
tree3a2dddd74a52154f64fe8046c161288729681c09
parent4df9ed0edb9f6f60afcf1fd70640cebc7eceb3c7
dmaengine: zynqmp_dma: Fix PM reference leak in zynqmp_dma_alloc_chan_resourc()

[ Upstream commit 8982d48af36d2562c0f904736b0fc80efc9f2532 ]

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/20210517081826.1564698-4-yukuai3@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/dma/xilinx/zynqmp_dma.c