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IB/mlx4: Refer to the device kobject instead of ports_parent 

iov sysfs tree is created under ib device at
/sys/class/infiniband/mlx4_0/iov.
And,
ibdev->ports_parent->parent = &ibdev->dev.

Therefore, refer to device's kobject directly instead of
indirect access to it.

Additionally, iov entries are created under device kobject and deleted
before device is removed. There is no need to hold additional reference
to device kobject in provider driver.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Parav Pandit 2018-10-07 12:12:39 +03:00 committed by Doug Ledford
parent 05d940d3a3
commit 60f1fc2049
1 changed files with 1 additions and 5 deletions
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6
drivers/infiniband/hw/mlx4/sysfs.c
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@ -818,9 +818,7 @@ int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *dev)
if (!mlx4_is_master(dev->dev))
return 0;
dev->iov_parent =
kobject_create_and_add("iov",
kobject_get(dev->ib_dev.ports_parent->parent));
dev->iov_parent = kobject_create_and_add("iov", &dev->ib_dev.dev.kobj);
if (!dev->iov_parent) {
ret = -ENOMEM;
goto err;
@ -850,7 +848,6 @@ err_add_entries:
err_ports:
kobject_put(dev->iov_parent);
err:
kobject_put(dev->ib_dev.ports_parent->parent);
pr_err("mlx4_ib_device_register_sysfs error (%d)\n", ret);
return ret;
}
@ -886,5 +883,4 @@ void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device)
kobject_put(device->ports_parent);
kobject_put(device->iov_parent);
kobject_put(device->iov_parent);
kobject_put(device->ib_dev.ports_parent->parent);
}