diff options
| author |   Etienne Carriere <etienne.carriere@st.com> | 2020-01-27 09:53:31 +0100 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2020-02-24 22:20:01 +0530 |
| commit | cb0bc2d09166e4d46cec82af6981cbf5aa01b158 (patch) | |
| tree | 445178c1c9fd59355fe45980f1d39173f55deeb4 /drivers/dma/stm32-mdma.c | |
| parent | dmaengine: stm32-mdma: use reset controller only at probe time (diff) | |
| download | linux-dev-cb0bc2d09166e4d46cec82af6981cbf5aa01b158.tar.xz linux-dev-cb0bc2d09166e4d46cec82af6981cbf5aa01b158.zip | |
dmaengine: stm32-mdma: disable clock in case of error during probe
This patch disables the clock in case of error during probe. The unneeded
err_unregister label is renamed err_clk instead.
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200127085334.13163-4-amelie.delaunay@st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/stm32-mdma.c')
| -rw-r--r-- | drivers/dma/stm32-mdma.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c index a0fb80dfb2e9..f23c82e3990c 100644 --- a/drivers/dma/stm32-mdma.c +++ b/drivers/dma/stm32-mdma.c @@ -1637,25 +1637,27 @@ static int stm32_mdma_probe(struct platform_device *pdev) } dmadev->irq = platform_get_irq(pdev, 0); - if (dmadev->irq < 0) - return dmadev->irq; + if (dmadev->irq < 0) { + ret = dmadev->irq; + goto err_clk; + } ret = devm_request_irq(&pdev->dev, dmadev->irq, stm32_mdma_irq_handler, 0, dev_name(&pdev->dev), dmadev); if (ret) { dev_err(&pdev->dev, "failed to request IRQ\n"); - return ret; + goto err_clk; } ret = dmaenginem_async_device_register(dd); if (ret) - return ret; + goto err_clk; ret = of_dma_controller_register(of_node, stm32_mdma_of_xlate, dmadev); if (ret < 0) { dev_err(&pdev->dev, "STM32 MDMA DMA OF registration failed %d\n", ret); - goto err_unregister; + goto err_clk; } platform_set_drvdata(pdev, dmadev); @@ -1668,7 +1670,9 @@ static int stm32_mdma_probe(struct platform_device *pdev) return 0; -err_unregister: +err_clk: + clk_disable_unprepare(dmadev->clk); + return ret; } |