xfs: return corresponding errcode if xfs_initialize_perag() fail
In xfs_initialize_perag(), if kmem_zalloc(), xfs_buf_hash_init(), or radix_tree_preload() failed, the returned value 'error' is not set accordingly. Reported-as-fixing: 8b26c582 ("xfs: handle ENOMEM correctly during initialisation of perag structures") Fixes: 9b247179 ("xfs: cache unlinked pointers in an rhashtable") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yu Kuai <yukuai3@huawei.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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