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| author | Julien Brunel <brunel@diku.dk> | 2008-09-24 16:22:22 -0500 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@ericvh-desktop.austin.ibm.com> | 2008-09-24 16:22:22 -0500 |
| commit | 62aa528e0299ffef8e138d9d92d13e631d06c5ff (patch) | |
| tree | 6dc9ca3bf077bf58352fe67e8adb4d4b304baba1 /fs | |
| parent | 620678244bc7b83287e2e283ed4fe6b959e94b7d (diff) | |
| download | op-kernel-dev-62aa528e0299ffef8e138d9d92d13e631d06c5ff.zip op-kernel-dev-62aa528e0299ffef8e138d9d92d13e631d06c5ff.tar.gz | |
9p: use an IS_ERR test rather than a NULL test
In case of error, the function p9_client_walk returns an ERR pointer, but
never returns a NULL pointer. So a NULL test that comes after an IS_ERR
test should be deleted.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@match_bad_null_test@
expression x, E;
statement S1,S2;
@@
x = p9_client_walk(...)
... when != x = E
* if (x != NULL)
S1 else S2
// </smpl>
Signed-off-by: Julien Brunel <brunel@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/9p/vfs_inode.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index c95295c..e83aa5e 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -626,8 +626,7 @@ static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry, return NULL; error: - if (fid) - p9_client_clunk(fid); + p9_client_clunk(fid); return ERR_PTR(result); } |
