diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2021-05-17 10:18:26 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-05-31 06:03:09 +0200 |
| commit | 8982d48af36d2562c0f904736b0fc80efc9f2532 (patch) | |
| tree | 688d4cec5a54ee21405e650c89e9b1c76ac59ce0 /drivers/dma/xilinx | |
| parent | dmaengine: xilinx: dpdma: initialize registers before request_irq (diff) | |
| download | linux-8982d48af36d2562c0f904736b0fc80efc9f2532.tar.xz linux-8982d48af36d2562c0f904736b0fc80efc9f2532.zip | |
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>
Diffstat (limited to 'drivers/dma/xilinx')
| -rw-r--r-- | drivers/dma/xilinx/zynqmp_dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/xilinx/zynqmp_dma.c b/drivers/dma/xilinx/zynqmp_dma.c index d8419565b92c..5fecf5aa6e85 100644 --- a/drivers/dma/xilinx/zynqmp_dma.c +++ b/drivers/dma/xilinx/zynqmp_dma.c @@ -468,7 +468,7 @@ static int zynqmp_dma_alloc_chan_resources(struct dma_chan *dchan) struct zynqmp_dma_desc_sw *desc; int i, ret; - ret = pm_runtime_get_sync(chan->dev); + ret = pm_runtime_resume_and_get(chan->dev); if (ret < 0) return ret; |