[PATCH] DMAENGINE: too many kref_put calls

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When a channel is removed from dmaengine, too many kref_put() calls
are made and the device removal happens too soon, usually causing
a panic.

Cc: Haavard Skinnemoen <[email protected]>
Cc: Dan Williams <[email protected]>
Signed-off-by: Shannon Nelson <[email protected]>

 drivers/dma/dmaengine.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 84257f7..245da53 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -134,8 +134,7 @@ static void dma_async_device_cleanup(struct kref *kref);
 static void dma_dev_release(struct device *dev)
-	struct dma_chan *chan = to_dma_chan(dev);
-	kref_put(&chan->device->refcount, dma_async_device_cleanup);
+	return;
 static struct class dma_devclass = {
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