diff options
| author | Moshe Shemesh <moshe@mellanox.com> | 2017-07-06 15:48:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-11 18:33:57 +0300 |
| commit | b0220535a3b683487e2ff3204cca77faabf7d23e (patch) | |
| tree | a979dfa2af5bc5e1c74a8f3bbbd85fccb4f6db99 | |
| parent | b79d0a855344682fb180ff570f9bc5b1ffd7e23e (diff) | |
| download | linux-b0220535a3b683487e2ff3204cca77faabf7d23e.tar.xz | |
net/mlx5: Fix command completion after timeout access invalid structure
[ Upstream commit 061870800efb4e3d1ad4082a2569363629bdfcfc ]
Completion on timeout should not free the driver command entry structure
as it will need to access it again once real completion event from FW
will occur.
Fixes: 73dd3a4839c1 ('net/mlx5: Avoid using pending command interface slots')
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Cc: kernel-team@fb.com
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c index 10d282841f5b..516e5d317885 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c @@ -955,7 +955,7 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in, err = wait_func(dev, ent); if (err == -ETIMEDOUT) - goto out_free; + goto out; ds = ent->ts2 - ent->ts1; op = MLX5_GET(mbox_in, in->first.data, opcode); @@ -1419,6 +1419,7 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced) mlx5_core_err(dev, "Command completion arrived after timeout (entry idx = %d).\n", ent->idx); free_ent(cmd, ent->idx); + free_cmd(ent); } continue; } @@ -1477,7 +1478,8 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced) free_msg(dev, ent->in); err = err ? err : ent->status; - free_cmd(ent); + if (!forced) + free_cmd(ent); callback(err, context); } else { complete(&ent->done); |