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Vignesh R authored
It is possible that DMA transfer is already complete but, completion handler is yet to be called, when dmaengine_pause() is called in case of error condition(like break/rx timeout). This leads to dmaengine_pause() API to return EINVAL (as descriptor is already NULL) causing rx_dma_broken flag to be set and effectively disabling RX DMA. Fix this by calling dmaengine_pause() only when transfer is in progress. Signed-off-by:
Vignesh R <vigneshr@ti.com> Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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