[IB] fix up class_device_create() calls

Fix class_device_create() calls to match the new prototype which
takes a parent device pointer.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/core/user_mad.c

diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 9e49816..97128e2 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -755,7 +755,7 @@
 	if (cdev_add(port->dev, base_dev + port->dev_num, 1))
 		goto err_cdev;
 
-	port->class_dev = class_device_create(umad_class, port->dev->dev,
+	port->class_dev = class_device_create(umad_class, NULL, port->dev->dev,
 					      device->dma_device,
 					      "umad%d", port->dev_num);
 	if (IS_ERR(port->class_dev))
@@ -775,7 +775,7 @@
 	if (cdev_add(port->sm_dev, base_dev + port->dev_num + IB_UMAD_MAX_PORTS, 1))
 		goto err_sm_cdev;
 
-	port->sm_class_dev = class_device_create(umad_class, port->sm_dev->dev,
+	port->sm_class_dev = class_device_create(umad_class, NULL, port->sm_dev->dev,
 						 device->dma_device,
 						 "issm%d", port->dev_num);
 	if (IS_ERR(port->sm_class_dev))

drivers/infiniband/core/uverbs_main.c

diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index ac08d2c..0eb38f4 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -757,7 +757,8 @@
 	if (cdev_add(uverbs_dev->dev, IB_UVERBS_BASE_DEV + uverbs_dev->devnum, 1))
 		goto err_cdev;
 
-	uverbs_dev->class_dev = class_device_create(uverbs_class, uverbs_dev->dev->dev,
+	uverbs_dev->class_dev = class_device_create(uverbs_class, NULL,
+						    uverbs_dev->dev->dev,
 						    device->dma_device,
 						    "uverbs%d", uverbs_dev->devnum);
 	if (IS_ERR(uverbs_dev->class_dev))