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IB/cma: Fix ports memory leak in cma_configfs 

[ Upstream commit 63a3345c2d ]

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: 045959db65 ("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>
5.4-rM2-2.2.x-imx-squashed
Maor Gottlieb 2020-05-21 10:26:50 +03:00 committed by Greg Kroah-Hartman
parent 6e934217c9
commit 4820050e84
1 changed files with 13 additions and 0 deletions
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13
drivers/infiniband/core/cma_configfs.c
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@ -322,8 +322,21 @@ fail:
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 = {