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NFS: Remove dead code from nfs_fs_mount() 

In fs/nfs/super.c::nfs_fs_mount() we test for a NULL 'data':

...
 		if (data == NULL || mntfh == NULL)
 			goto out_free_fh;
...

and then further down in the function we test 'data' again:

...
 			nfs_fscache_get_super_cookie(
 				s, data ? data->fscache_uniq : NULL, NULL);
...

this second check is just dead code since there is no way 'data' could
possibly be NULL here.
We also rely on a non-NULL 'data' in more than one location between these
two tests, further proving the point that the second test is bogus.

This patch removes the dead code.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Jesper Juhl 2011-04-10 17:57:07 +02:00 committed by Trond Myklebust
parent 6faf9a5415
commit 160bc1604f
1 changed files with 1 additions and 2 deletions
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3
fs/nfs/super.c
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@ -2235,8 +2235,7 @@ static struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
if (!s->s_root) { if (!s->s_root) {
/* initial superblock/root creation */ /* initial superblock/root creation */
nfs_fill_super(s, data); nfs_fill_super(s, data);
nfs_fscache_get_super_cookie( nfs_fscache_get_super_cookie(s, data->fscache_uniq, NULL);
s, data ? data->fscache_uniq : NULL, NULL);
} }
mntroot = nfs_get_root(s, mntfh, dev_name); mntroot = nfs_get_root(s, mntfh, dev_name);