Steven Liu <lingjiujianke@xxxxxxxxx> writes: > diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c > index e9103b3..230a131 100644 > --- a/fs/btrfs/dir-item.c > +++ b/fs/btrfs/dir-item.c > @@ -142,6 +142,8 @@ int btrfs_insert_dir_item(struct > btrfs_trans_handle *trans, struct btrfs_root > key.offset = btrfs_name_hash(name, name_len); > > path = btrfs_alloc_path(); > + if (!path) > + return -ENOMEM; The big problem is handling state unwind in all the callers, not adding it to the low level code. I attempted it some time ago but it's hard. Just spewing BUG_ON() all over on memory allocation failure is not helpful imho, that's not better than simply having clean NULL pointer faults. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
