diff options
Diffstat (limited to 'drivers/dma/dmaengine.c')
| -rw-r--r-- | drivers/dma/dmaengine.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index dd22dbd0c4ea..69b72e825d85 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -964,6 +964,13 @@ int dma_async_device_register(struct dma_device *device) return -EIO; } + if (dma_has_cap(DMA_SG, device->cap_mask) && !device->device_prep_dma_sg) { + dev_err(device->dev, + "Device claims capability %s, but op is not defined\n", + "DMA_SG"); + return -EIO; + } + if (dma_has_cap(DMA_CYCLIC, device->cap_mask) && !device->device_prep_dma_cyclic) { dev_err(device->dev, "Device claims capability %s, but op is not defined\n", |