The patch
ASoC: stm32: spdifrx: fix control DMA error management
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
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Thanks, Mark
From 98c8dc2fd59fdad77d26d7b0d7007776c5fbec16 Mon Sep 17 00:00:00 2001
From: olivier moysan olivier.moysan@st.com Date: Mon, 6 Nov 2017 16:18:53 +0100 Subject: [PATCH] ASoC: stm32: spdifrx: fix control DMA error management
Fix DMA channel request error handling.
Signed-off-by: Olivier Moysan olivier.moysan@st.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/stm/stm32_spdifrx.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a/sound/soc/stm/stm32_spdifrx.c b/sound/soc/stm/stm32_spdifrx.c index d7dbe84d5eeb..b9bdefcd3e10 100644 --- a/sound/soc/stm/stm32_spdifrx.c +++ b/sound/soc/stm/stm32_spdifrx.c @@ -392,6 +392,12 @@ static int stm32_spdifrx_dma_ctrl_register(struct device *dev, { int ret;
+ spdifrx->ctrl_chan = dma_request_chan(dev, "rx-ctrl"); + if (IS_ERR(spdifrx->ctrl_chan)) { + dev_err(dev, "dma_request_slave_channel failed\n"); + return PTR_ERR(spdifrx->ctrl_chan); + } + spdifrx->dmab = devm_kzalloc(dev, sizeof(struct snd_dma_buffer), GFP_KERNEL); if (!spdifrx->dmab) @@ -406,12 +412,6 @@ static int stm32_spdifrx_dma_ctrl_register(struct device *dev, return ret; }
- spdifrx->ctrl_chan = dma_request_chan(dev, "rx-ctrl"); - if (!spdifrx->ctrl_chan) { - dev_err(dev, "dma_request_slave_channel failed\n"); - return -EINVAL; - } - spdifrx->slave_config.direction = DMA_DEV_TO_MEM; spdifrx->slave_config.src_addr = (dma_addr_t)(spdifrx->phys_addr + STM32_SPDIFRX_CSR); @@ -423,7 +423,6 @@ static int stm32_spdifrx_dma_ctrl_register(struct device *dev, &spdifrx->slave_config); if (ret < 0) { dev_err(dev, "dmaengine_slave_config returned error %d\n", ret); - dma_release_channel(spdifrx->ctrl_chan); spdifrx->ctrl_chan = NULL; }
@@ -962,7 +961,7 @@ static int stm32_spdifrx_probe(struct platform_device *pdev) return 0;
error: - if (spdifrx->ctrl_chan) + if (!IS_ERR(spdifrx->ctrl_chan)) dma_release_channel(spdifrx->ctrl_chan); if (spdifrx->dmab) snd_dma_free_pages(spdifrx->dmab);