lkml.org 
[lkml]   [2011]   [Aug]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/4] fs/ext2/balloc.c: delete useless initialization
Date
From: Julia Lawall <julia@diku.dk>

Delete nontrivial initialization that is immediately overwritten by the
result of an allocation function.

The semantic match that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
identifier i;
expression e;
@@

(
T i = \(0\|NULL\|ERR_PTR(...)\);
|
-T i = e;
+T i;
)
... when != i
i = \(kzalloc\|kcalloc\|kmalloc\)(...);

// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>

---
fs/ext2/balloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff -u -p a/fs/ext2/balloc.c b/fs/ext2/balloc.c
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -421,7 +421,7 @@ static inline int rsv_is_empty(struct ex
void ext2_init_block_alloc_info(struct inode *inode)
{
struct ext2_inode_info *ei = EXT2_I(inode);
- struct ext2_block_alloc_info *block_i = ei->i_block_alloc_info;
+ struct ext2_block_alloc_info *block_i;
struct super_block *sb = inode->i_sb;

block_i = kmalloc(sizeof(*block_i), GFP_NOFS);


\
 
 \ /
  Last update: 2011-08-04 12:33    [W:0.145 / U:0.928 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site