From: Maor Gottlieb maorg@mellanox.com
[ Upstream commit 63a3345c2d42a9b29e1ce2d3a4043689b3995cea ]
The allocated ports structure in never freed. The free function should be called by release_cma_ports_group, but the group is never released since we don't remove its default group.
Remove default groups when device group is deleted.
Fixes: 045959db65c6 ("IB/cma: Add configfs for rdma_cm") Link: https://lore.kernel.org/r/20200521072650.567908-1-leon@kernel.org Signed-off-by: Maor Gottlieb maorg@mellanox.com Signed-off-by: Leon Romanovsky leonro@mellanox.com Signed-off-by: Jason Gunthorpe jgg@mellanox.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/core/cma_configfs.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/infiniband/core/cma_configfs.c b/drivers/infiniband/core/cma_configfs.c index c672a4978bfd..3c1e2ca564fe 100644 --- a/drivers/infiniband/core/cma_configfs.c +++ b/drivers/infiniband/core/cma_configfs.c @@ -322,8 +322,21 @@ static struct config_group *make_cma_dev(struct config_group *group, return ERR_PTR(err); }
+static void drop_cma_dev(struct config_group *cgroup, struct config_item *item) +{ + struct config_group *group = + container_of(item, struct config_group, cg_item); + struct cma_dev_group *cma_dev_group = + container_of(group, struct cma_dev_group, device_group); + + configfs_remove_default_groups(&cma_dev_group->ports_group); + configfs_remove_default_groups(&cma_dev_group->device_group); + config_item_put(item); +} + static struct configfs_group_operations cma_subsys_group_ops = { .make_group = make_cma_dev, + .drop_item = drop_cma_dev, };
static const struct config_item_type cma_subsys_type = {