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bcachefs: Fix an exiting of uninitialized iterator

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bch2_dirent_lookup had an error path where we'd exit a btree_iter that
hadn't been properly initialized.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
This commit is contained in:
Kent Overstreet 2021-11-13 12:57:00 -05:00 committed by Kent Overstreet
parent 54b2db3d58
commit 496b723879
1 changed files with 5 additions and 6 deletions
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11
fs/bcachefs/dirent.c
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@ -418,16 +418,15 @@ int __bch2_dirent_lookup_trans(struct btree_trans *trans,
k = bch2_btree_iter_peek_slot(iter);
ret = bkey_err(k);
if (ret) {
bch2_trans_iter_exit(trans, iter);
return ret;
}
if (ret)
goto err;
d = bkey_s_c_to_dirent(k);
ret = bch2_dirent_read_target(trans, dir, d, inum);
if (ret > 0)
ret = -ENOENT;
err:
if (ret)
bch2_trans_iter_exit(trans, iter);
@ -448,10 +447,10 @@ retry:
ret = __bch2_dirent_lookup_trans(&trans, &iter, dir, hash_info,
name, inum, 0);
bch2_trans_iter_exit(&trans, &iter);
if (ret == -EINTR)
goto retry;
if (!ret)
bch2_trans_iter_exit(&trans, &iter);
bch2_trans_exit(&trans);
return ret;
}