linux-kernel - ocfs2: inconsequent NULL checking

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Message-ID: <20070918181404.GA16401@stusta.de>
Date:	Tue, 18 Sep 2007 20:14:04 +0200
From:	Adrian Bunk <bunk@...nel.org>
To:	Mark Fasheh <mark.fasheh@...cle.com>, kurt.hackel@...cle.com
Cc:	ocfs2-devel@....oracle.com, linux-kernel@...r.kernel.org
Subject: ocfs2: inconsequent NULL checking

The Coverity checker spotted the following inconsequent NULL checking in 
fs/ocfs2/dlmglue.c:

<--  snip  -->

...
int ocfs2_meta_lock_atime(struct inode *inode,
                          struct vfsmount *vfsmnt,
                          int *level)
{
...
                if (ocfs2_should_update_atime(inode, vfsmnt))
                        ocfs2_update_inode_atime(inode, bh);
                if (bh)
                        brelse(bh);
...

<--  snip  -->

Since commit c11e9fafb398411af7558fca913c2fa4a10b1f48
ocfs2_update_inode_atime() contains an unconditional
dereference of "bh".

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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