RDMA/mlx5: Return proper error value
commit5.4-rM2-2.2.x-imx-squashed546d30099e
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>
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1b96c468f1
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d73bd8a7bc
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@ -428,7 +428,7 @@ struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int entry)
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if (entry < 0 || entry >= MAX_MR_CACHE_ENTRIES) {
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mlx5_ib_err(dev, "cache entry %d is out of range\n", entry);
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return NULL;
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return ERR_PTR(-EINVAL);
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}
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ent = &cache->ent[entry];
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