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RDMA/mlx5: Return proper error value

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commit 546d30099ed204792083f043cd7e016de86016a3 upstream.

Returned value from mlx5_mr_cache_alloc() is checked to be error or real
pointer. Return proper error code instead of NULL which is not checked
later.

Fixes: 81713d3788 ("IB/mlx5: Add implicit MR support")
Link: https://lore.kernel.org/r/20191029055721.7192-1-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Leon Romanovsky 2019-10-29 07:57:21 +02:00 • committed by Greg Kroah-Hartman
commit d73bd8a7bc
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/mlx5/mr.c
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@ -428,7 +428,7 @@ struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int entry)
if (entry < 0 || entry >= MAX_MR_CACHE_ENTRIES) {
mlx5_ib_err(dev, "cache entry %d is out of range\n", entry);
return NULL;
return ERR_PTR(-EINVAL);
}
ent = &cache->ent[entry];