Hello Jeff Mahoney,
This is a semi-automatic email about new static checker warnings.
The patch b286384aac32: "btrfs: root->fs_info cleanup, add fs_info
convenience variables" from Jun 22, 2016, leads to the following
Smatch complaint:
fs/btrfs/export.c:238 btrfs_get_name()
warn: variable dereferenced before check 'inode' (see line 226)
fs/btrfs/export.c
225 struct inode *dir = d_inode(parent);
226 struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
^^^^^^^^^^^
New dereference.
227 struct btrfs_path *path;
228 struct btrfs_root *root = BTRFS_I(dir)->root;
229 struct btrfs_inode_ref *iref;
230 struct btrfs_root_ref *rref;
231 struct extent_buffer *leaf;
232 unsigned long name_ptr;
233 struct btrfs_key key;
234 int name_len;
235 int ret;
236 u64 ino;
237
238 if (!dir || !inode)
^^^^^
Old code assumed it can be NULL.
239 return -EINVAL;
240
regards,
dan carpenter
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