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RDMA/mlx5: Remove extra unlock on error path

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commit c1eb251259 upstream.

The below commit lifted the locking out of this function but left this
error path unlock behind resulting in unbalanced locking. Remove the
missed unlock too.

Cc: stable@vger.kernel.org
Fixes: 627122280c ("RDMA/mlx5: Add work to remove temporary entries from the cache")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Link: https://lore.kernel.org/r/78090c210c750f47219b95248f9f782f34548bb1.1716900410.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jason Gunthorpe 2024-05-28 15:52:52 +03:00 committed by Greg Kroah-Hartman
parent 9464632483
commit 637a3bebcd
1 changed files with 1 additions and 3 deletions
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4
drivers/infiniband/hw/mlx5/mr.c
View File

@ -697,10 +697,8 @@ static int mlx5_cache_ent_insert(struct mlx5_mkey_cache *cache,
new = &((*new)->rb_left);
if (cmp < 0)
new = &((*new)->rb_right);
if (cmp == 0) {
mutex_unlock(&cache->rb_lock);
if (cmp == 0)
return -EEXIST;
}
}
/* Add new node and rebalance tree. */