[PATCH v2] fs: gfs2: Use IS_ERR_OR_NULL

[Kefeng Wang]

Use IS_ERR_OR_NULL where appropriate.

Signed-off-by: Kefeng Wang <wangkefeng.w...@huawei.com>
Signed-off-by: Andreas Gruenbacher <agrue...@redhat.com>
---
 fs/gfs2/dir.c        | 4 ++--
 fs/gfs2/glock.c      | 2 +-
 fs/gfs2/inode.c      | 2 +-
 fs/gfs2/ops_fstype.c | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 88e4f955c518..6f35d19eec25 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -750,7 +750,7 @@ static struct gfs2_dirent *gfs2_dirent_split_alloc(struct 
inode *inode,
        struct gfs2_dirent *dent;
        dent = gfs2_dirent_scan(inode, bh->b_data, bh->b_size,
                                gfs2_dirent_find_offset, name, ptr);
-       if (!dent || IS_ERR(dent))
+       if (IS_ERR_OR_NULL(dent))
                return dent;
        return do_init_dirent(inode, dent, name, bh,
                              (unsigned)(ptr - (void *)dent));
@@ -854,7 +854,7 @@ static struct gfs2_dirent *gfs2_dirent_search(struct inode 
*inode,
                return ERR_PTR(error);
        dent = gfs2_dirent_scan(inode, bh->b_data, bh->b_size, scan, name, 
NULL);
 got_dent:
-       if (unlikely(dent == NULL || IS_ERR(dent))) {
+       if (IS_ERR_OR_NULL(dent)) {
                brelse(bh);
                bh = NULL;
        }
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index f1ebcb42cbf5..44718098cc60 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -681,7 +681,7 @@ static void delete_work_func(struct work_struct *work)
                goto out;
 
        inode = gfs2_lookup_by_inum(sdp, no_addr, NULL, GFS2_BLKST_UNLINKED);
-       if (inode && !IS_ERR(inode)) {
+       if (!IS_ERR_OR_NULL(inode)) {
                d_prune_aliases(inode);
                iput(inode);
        }
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index b296c59832a7..2e2a8a2fb51d 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -793,7 +793,7 @@ static int gfs2_create_inode(struct inode *dir, struct 
dentry *dentry,
 fail_gunlock:
        gfs2_dir_no_add(&da);
        gfs2_glock_dq_uninit(ghs);
-       if (inode && !IS_ERR(inode)) {
+       if (!IS_ERR_OR_NULL(inode)) {
                clear_nlink(inode);
                if (!free_vfs_inode)
                        mark_inode_dirty(inode);
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 08823bb3b2d0..9683d534e1a1 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -568,7 +568,7 @@ static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct 
gfs2_holder *ji_gh)
 
                INIT_WORK(&jd->jd_work, gfs2_recover_func);
                jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);
-               if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
+               if (IS_ERR_OR_NULL(jd->jd_inode)) {
                        if (!jd->jd_inode)
                                error = -ENOENT;
                        else
-- 
2.20.1