From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> Date: Tue, 26 Jul 2016 13:00:32 +0200 The kobject_put() function tests whether its argument is NULL and then returns immediately. Thus the test around the calls is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> --- drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c | 4 +--- drivers/staging/lustre/lustre/lmv/lmv_obd.c | 5 ++--- drivers/staging/lustre/lustre/lov/lov_obd.c | 4 +--- drivers/staging/lustre/lustre/obdclass/genops.c | 6 ++---- 4 files changed, 6 insertions(+), 13 deletions(-) diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c index 2c1c2fc..52c5dd4 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c @@ -1069,9 +1069,7 @@ static int ldlm_cleanup(void) kset_unregister(ldlm_ns_kset); kset_unregister(ldlm_svc_kset); - if (ldlm_kobj) - kobject_put(ldlm_kobj); - + kobject_put(ldlm_kobj); ldlm_debugfs_cleanup(); kfree(ldlm_state); diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c index 0e1588a..8c2e5b3 100644 --- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c +++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c @@ -238,7 +238,7 @@ static int lmv_connect(const struct lu_env *env, if (data && data->ocd_connect_flags & OBD_CONNECT_REAL) rc = lmv_check_connect(obd); - if (rc && lmv->lmv_tgts_kobj) + if (rc) kobject_put(lmv->lmv_tgts_kobj); return rc; @@ -648,8 +648,7 @@ static int lmv_disconnect(struct obd_export *exp) lmv_disconnect_mdc(obd, lmv->tgts[i]); } - if (lmv->lmv_tgts_kobj) - kobject_put(lmv->lmv_tgts_kobj); + kobject_put(lmv->lmv_tgts_kobj); out_local: /* diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index 9b92d55..df701f7 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -106,9 +106,7 @@ static void lov_putref(struct obd_device *obd) __lov_del_obd(obd, tgt); } - if (lov->lov_tgts_kobj) - kobject_put(lov->lov_tgts_kobj); - + kobject_put(lov->lov_tgts_kobj); } else { mutex_unlock(&lov->lov_lock); } diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c index 99c2da6..1b5aa9b 100644 --- a/drivers/staging/lustre/lustre/obdclass/genops.c +++ b/drivers/staging/lustre/lustre/obdclass/genops.c @@ -203,8 +203,7 @@ int class_register_type(struct obd_ops *dt_ops, struct md_ops *md_ops, return 0; failed: - if (type->typ_kobj) - kobject_put(type->typ_kobj); + kobject_put(type->typ_kobj); kfree(type->typ_name); kfree(type->typ_md_ops); kfree(type->typ_dt_ops); @@ -231,8 +230,7 @@ int class_unregister_type(const char *name) return -EBUSY; } - if (type->typ_kobj) - kobject_put(type->typ_kobj); + kobject_put(type->typ_kobj); if (!IS_ERR_OR_NULL(type->typ_debugfs_entry)) ldebugfs_remove(&type->typ_debugfs_entry); -- 2.9.2 -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html