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Commit 116c0074 authored by Roland Dreier's avatar Roland Dreier
Browse files

[IB] Check port number in ib_query_port()/ib_modify_port() 



Check port number before passing query_port or modify_port operations
on to device driver.

Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent f575394f

drivers/infiniband/core/device.c

+12 −0
Original line number Diff line number Diff line
@@ -514,6 +514,12 @@ int ib_query_port(struct ib_device *device, 
		  u8 port_num,

		  struct ib_port_attr *port_attr)

{

	if (device->node_type == IB_NODE_SWITCH) {

		if (port_num)

			return -EINVAL;

	} else if (port_num < 1 || port_num > device->phys_port_cnt)

		return -EINVAL;



	return device->query_port(device, port_num, port_attr);

}

EXPORT_SYMBOL(ib_query_port);
@@ -583,6 +589,12 @@ int ib_modify_port(struct ib_device *device, 
		   u8 port_num, int port_modify_mask,

		   struct ib_port_modify *port_modify)

{

	if (device->node_type == IB_NODE_SWITCH) {

		if (port_num)

			return -EINVAL;

	} else if (port_num < 1 || port_num > device->phys_port_cnt)

		return -EINVAL;



	return device->modify_port(device, port_num, port_modify_mask,

				   port_modify);

}