simplify gfs2_lookup()

d_splice_alias() will DTRT when given NULL or ERR_PTR

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 3 insertions, 11 deletions

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index b1090d66a6fd..0fb51a96eff0 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -792,13 +792,8 @@ static int gfs2_create(struct inode *dir, struct dentry *dentry,
 static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry,
                                   struct nameidata *nd)
 {
-        struct inode *inode = NULL;
-
-        inode = gfs2_lookupi(dir, &dentry->d_name, 0);
-        if (inode && IS_ERR(inode))
-                return ERR_CAST(inode);
-
-        if (inode) {
+        struct inode *inode = gfs2_lookupi(dir, &dentry->d_name, 0);
+        if (inode && !IS_ERR(inode)) {
                 struct gfs2_glock *gl = GFS2_I(inode)->i_gl;
                 struct gfs2_holder gh;
                 int error;
@@ -808,11 +803,8 @@ static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry,
                         return ERR_PTR(error);
                 }
                 gfs2_glock_dq_uninit(&gh);
-                return d_splice_alias(inode, dentry);
         }
-        d_add(dentry, inode);
-
-        return NULL;
+        return d_splice_alias(inode, dentry);
 }
 
 /**