diff options
| author | Ido Schimmel | 2020-10-24 16:37:32 +0300 |
|---|---|---|
| committer | Jakub Kicinski | 2020-10-26 16:45:50 -0700 |
| commit | adc80b6cfedff6dad8b93d46a5ea2775fd5af9ec (patch) | |
| tree | b5a7a8cbd72250a25dc8dfe2b48c522e83a90e41 | |
| parent | 1601559be3e4213148b4cb4a1abe672b00bf4f67 (diff) | |
mlxsw: core: Fix memory leak on module removal
Free the devlink instance during the teardown sequence in the non-reload
case to avoid the following memory leak.
unreferenced object 0xffff888232895000 (size 2048):
comm "modprobe", pid 1073, jiffies 4295568857 (age 164.871s)
hex dump (first 32 bytes):
00 01 00 00 00 00 ad de 22 01 00 00 00 00 ad de ........".......
10 50 89 32 82 88 ff ff 10 50 89 32 82 88 ff ff .P.2.....P.2....
backtrace:
[<00000000c704e9a6>] __kmalloc+0x13a/0x2a0
[<00000000ee30129d>] devlink_alloc+0xff/0x760
[<0000000092ab3e5d>] 0xffffffffa042e5b0
[<000000004f3f8a31>] 0xffffffffa042f6ad
[<0000000092800b4b>] 0xffffffffa0491df3
[<00000000c4843903>] local_pci_probe+0xcb/0x170
[<000000006993ded7>] pci_device_probe+0x2c2/0x4e0
[<00000000a8e0de75>] really_probe+0x2c5/0xf90
[<00000000d42ba75d>] driver_probe_device+0x1eb/0x340
[<00000000bcc95e05>] device_driver_attach+0x294/0x300
[<000000000e2bc177>] __driver_attach+0x167/0x2f0
[<000000007d44cd6e>] bus_for_each_dev+0x148/0x1f0
[<000000003cd5a91e>] driver_attach+0x45/0x60
[<000000000041ce51>] bus_add_driver+0x3b8/0x720
[<00000000f5215476>] driver_register+0x230/0x4e0
[<00000000d79356f5>] __pci_register_driver+0x190/0x200
Fixes: a22712a96291 ("mlxsw: core: Fix devlink unregister flow")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reported-by: Vadim Pasternak <vadimp@nvidia.com>
Tested-by: Oleksandr Shamray <oleksandrs@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c index 7f77c2a71d1c..a2efbb1e3cf4 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core.c @@ -2064,6 +2064,8 @@ void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core, if (!reload) devlink_resources_unregister(devlink, NULL); mlxsw_core->bus->fini(mlxsw_core->bus_priv); + if (!reload) + devlink_free(devlink); return; |