4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tobias Jordan <tobias.jor...@elektrobit.com>


[ 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.jor...@elektrobit.com>
Signed-off-by: Vinod Koul <vinod.k...@intel.com>
Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/dma/dma-jz4740.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/dma/dma-jz4740.c
+++ b/drivers/dma/dma-jz4740.c
@@ -555,7 +555,7 @@ static int jz4740_dma_probe(struct platf
 
        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);
@@ -568,6 +568,8 @@ static int jz4740_dma_probe(struct platf
 
 err_unregister:
        dma_async_device_unregister(dd);
+err_clk:
+       clk_disable_unprepare(dmadev->clk);
        return ret;
 }
 


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