bcachefs: Add another mssing bch2_trans_iter_put() call

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

fs/bcachefs/fs.c

@@ -145,8 +145,6 @@ int __must_check bch2_write_inode(struct bch_fs *c,
 				  &inode->ei_journal_seq,
 				  BTREE_INSERT_NOUNLOCK|
 				  BTREE_INSERT_NOFAIL);
-	if (ret == -EINTR)
-		goto retry;
 
 	/*
 	 * the btree node lock protects inode->ei_inode, not ei_update_lock;
@@ -155,6 +153,11 @@ int __must_check bch2_write_inode(struct bch_fs *c,
 	if (!ret)
 		bch2_inode_update_after_write(c, inode, &inode_u, fields);
 
+	bch2_trans_iter_put(&trans, iter);
+
+	if (ret == -EINTR)
+		goto retry;
+
 	bch2_trans_exit(&trans);
 	return ret < 0 ? ret : 0;
 }