diff options
| -rw-r--r-- | drivers/dma/dmaengine.c | 3 |
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 */ |