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authorVadim Pasternak <vadimp@mellanox.com>2016-11-16 15:20:45 +0100
committerDavid S. Miller <davem@davemloft.net>2016-11-16 23:29:04 -0500
commit4ebd00bc5ffc747f07fe23b1993adc9e6220ba2f (patch)
treea5bec95e14b2df8d69495c2af7901e06043d1511
parent6882b0aee180f2797b8803bdf699aa45c2e5f2d6 (diff)
downloadlinux-4ebd00bc5ffc747f07fe23b1993adc9e6220ba2f.tar.bz2
mlxsw: Invoke driver's init/fini methods only if defined
We are going to add a minimal driver on top of the mlxsw core infrastructure, which will be mainly used for hardware monitoring in Baseboard management controller (BMC) installations. Unlike the switch drivers (e.g., spectrum, switchx2), this driver does not initialize the ASIC and therefore doesn't need to implement the init() and fini() methods in its 'mlxsw_driver' struct. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/core.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index 4f7c478a595b..763752f1745d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -1162,9 +1162,11 @@ int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
if (err)
goto err_hwmon_init;
- err = mlxsw_driver->init(mlxsw_core, mlxsw_bus_info);
- if (err)
- goto err_driver_init;
+ if (mlxsw_driver->init) {
+ err = mlxsw_driver->init(mlxsw_core, mlxsw_bus_info);
+ if (err)
+ goto err_driver_init;
+ }
err = mlxsw_core_debugfs_init(mlxsw_core);
if (err)
@@ -1173,7 +1175,8 @@ int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
return 0;
err_debugfs_init:
- mlxsw_core->driver->fini(mlxsw_core);
+ if (mlxsw_core->driver->fini)
+ mlxsw_core->driver->fini(mlxsw_core);
err_driver_init:
err_hwmon_init:
devlink_unregister(devlink);
@@ -1199,7 +1202,8 @@ void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core)
struct devlink *devlink = priv_to_devlink(mlxsw_core);
mlxsw_core_debugfs_fini(mlxsw_core);
- mlxsw_core->driver->fini(mlxsw_core);
+ if (mlxsw_core->driver->fini)
+ mlxsw_core->driver->fini(mlxsw_core);
devlink_unregister(devlink);
mlxsw_emad_fini(mlxsw_core);
mlxsw_core->bus->fini(mlxsw_core->bus_priv);