Btrfs: return ENOMEM rather than use BUG_ON when btrfs_alloc_path fails
Return ENOMEM rather trigger BUG_ON, fix it. Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com> Reviewed-by: Miao Xie <miaox@cn.fujitsu.com> Reviewed-by: Zach Brown <zab@redhat.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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@ -620,7 +620,9 @@ static int update_qgroup_limit_item(struct btrfs_trans_handle *trans,
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key.offset = qgroupid;
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path = btrfs_alloc_path();
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BUG_ON(!path);
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if (!path)
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return -ENOMEM;
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ret = btrfs_search_slot(trans, root, &key, path, 0, 1);
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if (ret > 0)
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ret = -ENOENT;
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@ -661,7 +663,9 @@ static int update_qgroup_info_item(struct btrfs_trans_handle *trans,
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key.offset = qgroup->qgroupid;
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path = btrfs_alloc_path();
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BUG_ON(!path);
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if (!path)
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return -ENOMEM;
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ret = btrfs_search_slot(trans, root, &key, path, 0, 1);
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if (ret > 0)
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ret = -ENOENT;
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@ -702,7 +706,9 @@ static int update_qgroup_status_item(struct btrfs_trans_handle *trans,
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key.offset = 0;
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path = btrfs_alloc_path();
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BUG_ON(!path);
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if (!path)
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return -ENOMEM;
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ret = btrfs_search_slot(trans, root, &key, path, 0, 1);
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if (ret > 0)
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ret = -ENOENT;
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