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authorJulia Lawall <julia@diku.dk>2008-03-24 19:08:48 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2008-03-31 10:41:46 +0100
commit773adff8e983cba1f5844c3be3be224ca6645f26 (patch)
tree369f9a4394176b0a8860e9558852d63453ccc9a4
parent58e9fee13e579df44922172dbe3c9e3ba3edf7a3 (diff)
[GFS2] test for IS_ERR rather than 0
The function gfs2_inode_lookup always returns either a valid pointer or a value made with ERR_PTR, so its result should be tested with IS_ERR, not with a test for 0. The problem was found using the following semantic match. (http://www.emn.fr/x-info/coccinelle/) //<smpl> @a@ expression E, E1; statement S,S1; position p; @@ E = gfs2_inode_lookup(...) ... when != E = E1 if@p (E) S else S1 @n@ position a.p; expression E,E1; statement S,S1; @@ E = NULL ... when != E = E1 if@p (E) S else S1 @depends on !n@ expression E; statement S,S1; position a.p; @@ * if@p (E) S else S1 //</smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
-rw-r--r--fs/gfs2/ops_export.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index 334c7f8..990d9f4 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -204,8 +204,6 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb,
inode = gfs2_inode_lookup(sb, DT_UNKNOWN,
inum->no_addr,
0, 0);
- if (!inode)
- goto fail;
if (IS_ERR(inode)) {
error = PTR_ERR(inode);
goto fail;