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author | Haggai Eran <haggaie@mellanox.com> | 2014-05-18 11:12:26 +0300 |
---|---|---|
committer | Roland Dreier <roland@purestorage.com> | 2014-06-05 09:37:10 -0700 |
commit | 584482ac80e13250061fcc85ea8a68c6a31d5033 (patch) | |
tree | b9eefa0626e08356cf91ff57849c78dab63dc183 /drivers/infiniband/core | |
parent | cad6d02acc13b6360e4525f86adb6a8932501e15 (diff) | |
download | linux-stable-584482ac80e13250061fcc85ea8a68c6a31d5033.tar.gz linux-stable-584482ac80e13250061fcc85ea8a68c6a31d5033.tar.bz2 linux-stable-584482ac80e13250061fcc85ea8a68c6a31d5033.zip |
IB/core: Fix kobject leak on device register error flow
The ports kobject isn't being released during error flow in device
registration. This patch refactors the ports kobject cleanup into a
single function called from both the error flow in device registration
and from the unregistration function.
A couple of attributes aren't being deleted (iw_stats_group, and
ib_class_attributes). While this may be handled implicitly by the
destruction of their kobjects, it seems better to handle all the
attributes the same way.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
[ Make free_port_list_attributes() static. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/core')
-rw-r--r-- | drivers/infiniband/core/sysfs.c | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 68fa798c007d..cbd0383f622e 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -816,6 +816,22 @@ static struct attribute_group iw_stats_group = { .attrs = iw_proto_stats_attrs, }; +static void free_port_list_attributes(struct ib_device *device) +{ + struct kobject *p, *t; + + list_for_each_entry_safe(p, t, &device->port_list, entry) { + struct ib_port *port = container_of(p, struct ib_port, kobj); + list_del(&p->entry); + sysfs_remove_group(p, &pma_group); + sysfs_remove_group(p, &port->pkey_group); + sysfs_remove_group(p, &port->gid_group); + kobject_put(p); + } + + kobject_put(device->ports_parent); +} + int ib_device_register_sysfs(struct ib_device *device, int (*port_callback)(struct ib_device *, u8, struct kobject *)) @@ -869,19 +885,7 @@ int ib_device_register_sysfs(struct ib_device *device, return 0; err_put: - { - struct kobject *p, *t; - struct ib_port *port; - - list_for_each_entry_safe(p, t, &device->port_list, entry) { - list_del(&p->entry); - port = container_of(p, struct ib_port, kobj); - sysfs_remove_group(p, &pma_group); - sysfs_remove_group(p, &port->pkey_group); - sysfs_remove_group(p, &port->gid_group); - kobject_put(p); - } - } + free_port_list_attributes(device); err_unregister: device_unregister(class_dev); @@ -892,22 +896,18 @@ err: void ib_device_unregister_sysfs(struct ib_device *device) { - struct kobject *p, *t; - struct ib_port *port; - /* Hold kobject until ib_dealloc_device() */ - kobject_get(&device->dev.kobj); + struct kobject *kobj_dev = kobject_get(&device->dev.kobj); + int i; - list_for_each_entry_safe(p, t, &device->port_list, entry) { - list_del(&p->entry); - port = container_of(p, struct ib_port, kobj); - sysfs_remove_group(p, &pma_group); - sysfs_remove_group(p, &port->pkey_group); - sysfs_remove_group(p, &port->gid_group); - kobject_put(p); - } + if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) + sysfs_remove_group(kobj_dev, &iw_stats_group); + + free_port_list_attributes(device); + + for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) + device_remove_file(&device->dev, ib_class_attributes[i]); - kobject_put(device->ports_parent); device_unregister(&device->dev); } |