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| author | Julia Lawall <julia@diku.dk> | 2010-10-29 15:14:23 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-10-29 15:14:23 -0400 |
| commit | d0b678cb0a26783ab7238784f1e7e608e5caafa3 (patch) | |
| tree | a912b938a6558550960f6b07139bd119d86f89eb | |
| parent | 2354d08fe9aeec3e451b85cb5387a6b28dbca0b1 (diff) | |
| download | kernel_samsung_smdk4412-d0b678cb0a26783ab7238784f1e7e608e5caafa3.zip kernel_samsung_smdk4412-d0b678cb0a26783ab7238784f1e7e608e5caafa3.tar.gz kernel_samsung_smdk4412-d0b678cb0a26783ab7238784f1e7e608e5caafa3.tar.bz2 | |
Btrfs: Use ERR_CAST helpers
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 <julia@diku.dk>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/extent_map.c | 4 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 454ca52..23cb8da 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -335,7 +335,7 @@ struct extent_map *lookup_extent_mapping(struct extent_map_tree *tree, 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(struct extent_map_tree *tree, 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 --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 65b62da..d7fb273 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -389,7 +389,7 @@ static struct dentry *get_default_root(struct super_block *sb, 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); |