From: Julia Lawall <[email protected]> Use ERR_CAST(x) rather than ERR_PTR(PTR_ERR(x)). The former makes more clear what is the purpose of the operation, which otherwise looks like a no-op.
The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; T x; identifier f; @@ T f (...) { <+... - ERR_PTR(PTR_ERR(x)) + x ...+> } @@ expression x; @@ - ERR_PTR(PTR_ERR(x)) + ERR_CAST(x) // </smpl> Signed-off-by: Julia Lawall <[email protected]> --- fs/btrfs/extent_map.c | 4 ++-- fs/btrfs/super.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff -u -p a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -335,7 +335,7 @@ struct extent_map *lookup_extent_mapping goto out; } if (IS_ERR(rb_node)) { - em = ERR_PTR(PTR_ERR(rb_node)); + em = ERR_CAST(rb_node); goto out; } em = rb_entry(rb_node, struct extent_map, rb_node); @@ -384,7 +384,7 @@ struct extent_map *search_extent_mapping goto out; } if (IS_ERR(rb_node)) { - em = ERR_PTR(PTR_ERR(rb_node)); + em = ERR_CAST(rb_node); goto out; } em = rb_entry(rb_node, struct extent_map, rb_node); diff -u -p a/fs/btrfs/super.c b/fs/btrfs/super.c --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -378,7 +378,7 @@ static struct dentry *get_default_root(s find_root: new_root = btrfs_read_fs_root_no_name(root->fs_info, &location); if (IS_ERR(new_root)) - return ERR_PTR(PTR_ERR(new_root)); + return ERR_CAST(new_root); if (btrfs_root_refs(&new_root->root_item) == 0) return ERR_PTR(-ENOENT); -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
