diff options
author | Tobias Jordan <Tobias.Jordan@elektrobit.com> | 2017-12-06 14:28:27 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-25 11:03:41 +0100 |
commit | 884438152f585559c253087f1d2d1d0d632d62ca (patch) | |
tree | 22d78ba8893221596457d1e2a7d7c003dc6c0da7 /drivers/dma | |
parent | b22c361ea98d9ade1a6055aec27e04c5e9f3342e (diff) |
dmaengine: jz4740: disable/unprepare clk if probe fails
[ Upstream commit eb9436966fdc84cebdf222952a99898ab46d9bb0 ]
in error path of jz4740_dma_probe(), call clk_disable_unprepare() to clean
up.
Found by Linux Driver Verification project (linuxtesting.org).
Fixes: 25ce6c35fea0 MIPS: jz4740: Remove custom DMA API
Signed-off-by: Tobias Jordan <Tobias.Jordan@elektrobit.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r-- | drivers/dma/dma-jz4740.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c index 7638b24ce8d0..35fc58f4bf4b 100644 --- a/drivers/dma/dma-jz4740.c +++ b/drivers/dma/dma-jz4740.c @@ -557,7 +557,7 @@ static int jz4740_dma_probe(struct platform_device *pdev) ret = dma_async_device_register(dd); if (ret) - return ret; + goto err_clk; irq = platform_get_irq(pdev, 0); ret = request_irq(irq, jz4740_dma_irq, 0, dev_name(&pdev->dev), dmadev); @@ -570,6 +570,8 @@ static int jz4740_dma_probe(struct platform_device *pdev) err_unregister: dma_async_device_unregister(dd); +err_clk: + clk_disable_unprepare(dmadev->clk); return ret; } |