diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 4662d9aa6d5a59b1c02af088b3687d6befbbfdc5..2f69e1d93f92e026d4ac4a2200571908d348a6da 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -895,6 +895,8 @@ static inline int dmaengine_terminate_async(struct dma_chan *chan)
  */
 static inline void dmaengine_synchronize(struct dma_chan *chan)
 {
+	might_sleep();
+
 	if (chan->device->device_synchronize)
 		chan->device->device_synchronize(chan);
 }