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-rw-r--r--drivers/dma/dmaengine.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index cae120994d8f..30211f9791b7 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -826,6 +826,9 @@ int dma_async_device_register(struct dma_device *device)
BUG_ON(!device->device_issue_pending);
BUG_ON(!device->dev);
+ WARN(dma_has_cap(DMA_SLAVE, device->cap_mask) && !device->directions,
+ "this driver doesn't support generic slave capabilities reporting\n");
+
/* note: this only matters in the
* CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH=n case
*/