Both of btrfs_update_inode() and btrfs_add_root_ref() may fail because
of ENOMEM. So there's no reason to panic here, we can replace BUG_ON()
with btrfs_abort_transaction() here.
Signed-off-by: Lu Fengqi <lufq.fnst@xxxxxxxxxxxxxx>
---
fs/btrfs/ioctl.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 1b03d07acde2..f6173d4e7ced 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -572,11 +572,17 @@ static int btrfs_link_subvol(struct btrfs_trans_handle *trans,
btrfs_i_size_write(BTRFS_I(dir), dir->i_size + namelen * 2);
ret = btrfs_update_inode(trans, root, dir);
- BUG_ON(ret);
+ if (ret) {
+ btrfs_abort_transaction(trans, ret);
+ return ret;
+ }
ret = btrfs_add_root_ref(trans, objectid, root->root_key.objectid,
btrfs_ino(BTRFS_I(dir)), index, name, namelen);
- BUG_ON(ret);
+ if (ret) {
+ btrfs_abort_transaction(trans, ret);
+ return ret;
+ }
return ret;
}
--
2.18.0
