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mlxsw: spectrum_acl: Fix mlxsw_sp_acl_tcam_group_add()'s error path

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[ Upstream commit 72865028582a678be1e05240e55d452e5c258eca ]

If mlxsw_sp_acl_tcam_group_id_get() fails, the mutex initialized earlier
is not destroyed.

Fix this by initializing the mutex after calling the function. This is
symmetric to mlxsw_sp_acl_tcam_group_del().

Fixes: 5ec2ee28d2 ("mlxsw: spectrum_acl: Introduce a mutex to guard region list updates")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ido Schimmel 2020-09-27 09:42:11 +03:00 • committed by Greg Kroah-Hartman
commit 7a96cbd74f
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
View file

@ -290,13 +290,14 @@ mlxsw_sp_acl_tcam_group_add(struct mlxsw_sp_acl_tcam *tcam,
int err;
group->tcam = tcam;
mutex_init(&group->lock);
INIT_LIST_HEAD(&group->region_list);
err = mlxsw_sp_acl_tcam_group_id_get(tcam, &group->id);
if (err)
return err;
mutex_init(&group->lock);
return 0;
}