diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/core/device.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 694bd669b2d8..9567756ca4f9 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -211,6 +211,12 @@ static int add_client_context(struct ib_device *device, struct ib_client *client return 0; } +static int verify_immutable(const struct ib_device *dev, u8 port) +{ + return WARN_ON(!rdma_cap_ib_mad(dev, port) && + rdma_max_mad_size(dev, port) != 0); +} + static int read_port_immutable(struct ib_device *device) { int ret = -ENOMEM; @@ -236,6 +242,11 @@ static int read_port_immutable(struct ib_device *device) &device->port_immutable[port]); if (ret) goto err; + + if (verify_immutable(device, port)) { + ret = -EINVAL; + goto err; + } } ret = 0; |