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ceph: remove useless IS_ERR checks 

ceph_lookup_snap_realm either returns a valid pointer or NULL; there is no
need to check IS_ERR(result).

Reported-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2009-11-21 13:08:14 -08:00
parent 32c895e776
commit 75eb359281
1 changed files with 0 additions and 10 deletions
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10
fs/ceph/snap.c
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@ -226,8 +226,6 @@ static int adjust_snap_realm_parent(struct ceph_mds_client *mdsc,
return 0;
parent = ceph_lookup_snap_realm(mdsc, parentino);
if (IS_ERR(parent))
return PTR_ERR(parent);
if (!parent) {
parent = ceph_create_snap_realm(mdsc, parentino);
if (IS_ERR(parent))
@ -541,10 +539,6 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,
p += sizeof(u64) * le32_to_cpu(ri->num_prior_parent_snaps);
realm = ceph_lookup_snap_realm(mdsc, le64_to_cpu(ri->ino));
if (IS_ERR(realm)) {
err = PTR_ERR(realm);
goto fail;
}
if (!realm) {
realm = ceph_create_snap_realm(mdsc, le64_to_cpu(ri->ino));
if (IS_ERR(realm)) {
@ -762,8 +756,6 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
ri = p;
realm = ceph_lookup_snap_realm(mdsc, split);
if (IS_ERR(realm))
goto out;
if (!realm) {
realm = ceph_create_snap_realm(mdsc, split);
if (IS_ERR(realm))
@ -829,8 +821,6 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
struct ceph_snap_realm *child =
ceph_lookup_snap_realm(mdsc,
le64_to_cpu(split_realms[i]));
if (IS_ERR(child))
continue;
if (!child)
continue;
adjust_snap_realm_parent(mdsc, child, realm->ino);