From: Julia Lawall <julia@diku.dk>
Date: Thu, 4 Aug 2011 10:29:31 +0000 (+0200)
Subject: fs/ext3/balloc.c: delete useless initialization
X-Git-Tag: firefly_0821_release~3680^2~4230^2~16
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=46130222df8567ffde773216044c7611a1e71d51;p=firefly-linux-kernel-4.4.55.git

fs/ext3/balloc.c: delete useless initialization

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>
Signed-off-by: Jan Kara <jack@suse.cz>
---

diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index 6386d76f44a7..caedc00520ed 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -427,7 +427,7 @@ static inline int rsv_is_empty(struct ext3_reserve_window *rsv)
 void ext3_init_block_alloc_info(struct inode *inode)
 {
 	struct ext3_inode_info *ei = EXT3_I(inode);
-	struct ext3_block_alloc_info *block_i = ei->i_block_alloc_info;
+	struct ext3_block_alloc_info *block_i;
 	struct super_block *sb = inode->i_sb;
 
 	block_i = kmalloc(sizeof(*block_i), GFP_NOFS);