| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.8 074/124] mlxsw: spectrum_acl: Fix mlxsw_sp_acl_tcam_group_add()s error path | Date | Mon, 12 Oct 2020 15:31:18 +0200 |
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From: Ido Schimmel <idosch@nvidia.com>
[ 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: 5ec2ee28d27b ("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> --- drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c index 5c020403342f9..7cccc41dd69c9 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c @@ -292,13 +292,14 @@ 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; } -- 2.25.1
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