diff options
Diffstat (limited to 'drivers/infiniband/core/device.c')
| -rw-r--r-- | drivers/infiniband/core/device.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index d543c4390447..cac1518de36e 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -333,14 +333,15 @@ int ib_register_device(struct ib_device *device, int ret; struct ib_client *client; struct ib_udata uhw = {.outlen = 0, .inlen = 0}; - - WARN_ON_ONCE(!device->dev.parent && !device->dma_device); - WARN_ON_ONCE(device->dev.parent && device->dma_device - && device->dev.parent != device->dma_device); - if (!device->dev.parent) - device->dev.parent = device->dma_device; - if (!device->dma_device) - device->dma_device = device->dev.parent; + struct device *parent = device->dev.parent; + + WARN_ON_ONCE(!parent); + if (!device->dev.dma_ops) + device->dev.dma_ops = parent->dma_ops; + if (!device->dev.dma_mask) + device->dev.dma_mask = parent->dma_mask; + if (!device->dev.coherent_dma_mask) + device->dev.coherent_dma_mask = parent->coherent_dma_mask; mutex_lock(&device_mutex); |