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vdpa/mlx5: Restore cur_num_vqs in case of failure in change_num_qps()
commit37e07e7058
upstream. Restore ndev->cur_num_vqs to the original value in case change_num_qps() fails. Fixes:52893733f2
("vdpa/mlx5: Add multiqueue support") Reviewed-by: Si-Wei Liu<si-wei.liu@oracle.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20220105114646.577224-10-elic@nvidia.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 3 additions and 1 deletions
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@ -1510,9 +1510,11 @@ static int change_num_qps(struct mlx5_vdpa_dev *mvdev, int newqps)
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return 0;
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clean_added:
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for (--i; i >= cur_qps; --i)
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for (--i; i >= 2 * cur_qps; --i)
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teardown_vq(ndev, &ndev->vqs[i]);
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ndev->cur_num_vqs = 2 * cur_qps;
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return err;
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}
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