From: Satendra Singh Thakur sst2005@gmail.com
[ Upstream commit 1ff95243257fad07290dcbc5f7a6ad79d6e703e2 ]
When devm_request_irq fails, currently, the function dma_async_device_unregister gets called. This doesn't free the resources allocated by of_dma_controller_register. Therefore, we have called of_dma_controller_free for this purpose.
Signed-off-by: Satendra Singh Thakur sst2005@gmail.com Link: https://lore.kernel.org/r/20191109113523.6067-1-sst2005@gmail.com Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/dma/mediatek/mtk-hsdma.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/mediatek/mtk-hsdma.c b/drivers/dma/mediatek/mtk-hsdma.c index b7ec56ae02a6e..fca232b1d4a64 100644 --- a/drivers/dma/mediatek/mtk-hsdma.c +++ b/drivers/dma/mediatek/mtk-hsdma.c @@ -997,7 +997,7 @@ static int mtk_hsdma_probe(struct platform_device *pdev) if (err) { dev_err(&pdev->dev, "request_irq failed with err %d\n", err); - goto err_unregister; + goto err_free; }
platform_set_drvdata(pdev, hsdma); @@ -1006,6 +1006,8 @@ static int mtk_hsdma_probe(struct platform_device *pdev)
return 0;
+err_free: + of_dma_controller_free(pdev->dev.of_node); err_unregister: dma_async_device_unregister(dd);