diff options
Diffstat (limited to 'net/core/devmem.c')
| -rw-r--r-- | net/core/devmem.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/core/devmem.c b/net/core/devmem.c index 24c591ab38ae..d9de31a6cc7f 100644 --- a/net/core/devmem.c +++ b/net/core/devmem.c @@ -176,6 +176,7 @@ err_close_rxq: struct net_devmem_dmabuf_binding * net_devmem_bind_dmabuf(struct net_device *dev, + struct device *dma_dev, enum dma_data_direction direction, unsigned int dmabuf_fd, struct netdev_nl_sock *priv, struct netlink_ext_ack *extack) @@ -188,6 +189,11 @@ net_devmem_bind_dmabuf(struct net_device *dev, unsigned long virtual; int err; + if (!dma_dev) { + NL_SET_ERR_MSG(extack, "Device doesn't support DMA"); + return ERR_PTR(-EOPNOTSUPP); + } + dmabuf = dma_buf_get(dmabuf_fd); if (IS_ERR(dmabuf)) return ERR_CAST(dmabuf); @@ -209,7 +215,7 @@ net_devmem_bind_dmabuf(struct net_device *dev, binding->dmabuf = dmabuf; binding->direction = direction; - binding->attachment = dma_buf_attach(binding->dmabuf, dev->dev.parent); + binding->attachment = dma_buf_attach(binding->dmabuf, dma_dev); if (IS_ERR(binding->attachment)) { err = PTR_ERR(binding->attachment); NL_SET_ERR_MSG(extack, "Failed to bind dmabuf to device"); |