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)
committerVinod Koul <vkoul@kernel.org>
Mon, 31 May 2021 04:03:09 +0000 (09:33 +0530)
commit8982d48af36d2562c0f904736b0fc80efc9f2532
tree688d4cec5a54ee21405e650c89e9b1c76ac59ce0
parent538ea65a9fd1194352a41313bff876b74b5d90c5
dmaengine: zynqmp_dma: Fix PM reference leak in zynqmp_dma_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/20210517081826.1564698-4-yukuai3@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
drivers/dma/xilinx/zynqmp_dma.c