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dmaengine: fix balance of privatecnt
dma_release_channel() decrements privatecnt counter and almost all dma_get* function increments it with the exception of dma_get_slave_channel(). In most cases this does not cause issue since normally the channel is not requested and released, but if a driver requests DMA channel via dma_get_slave_channel() and releases the channel the privatecnt will be unbalanced and this will prevent for example getting channel for memcpy. Signed-off-by: Peter Ujfalusi <[email protected]> Signed-off-by: Vinod Koul <[email protected]>
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