linux-kernel - [patch 3/3] btrfs cleanup: unneeded null check

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Message-ID: <20100320113752.GA5331@bicker>
Date:	Sat, 20 Mar 2010 14:37:52 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Chris Mason <chris.mason@...cle.com>
Cc:	Josef Bacik <josef@...hat.com>, Yan Zheng <zheng.yan@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch 3/3] btrfs cleanup: unneeded null check

old_inode cannot be null here so I removed the check.
This fixes a smatch warning:
fs/btrfs/inode.c +5545 btrfs_rename(88) warn: variable dereferenced 
	before check 'old_inode'

Signed-off-by: Dan Carpenter <error27@...il.com>
---
linux-next material

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 02bb099..647ce41 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5541,10 +5541,8 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	 * make sure the inode gets flushed if it is replacing
 	 * something.
 	 */
-	if (new_inode && new_inode->i_size &&
-	    old_inode && S_ISREG(old_inode->i_mode)) {
+	if (new_inode && new_inode->i_size && S_ISREG(old_inode->i_mode))
 		btrfs_add_ordered_operation(trans, root, old_inode);
-	}
 
 	old_dir->i_ctime = old_dir->i_mtime = ctime;
 	new_dir->i_ctime = new_dir->i_mtime = ctime;
--
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