diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 51a9736be7269bb1d7f63a2ff20f42aec7eb9bd9..c50fd9f11aab8b0dfb8b90991378a51bf8255d1b 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -594,10 +594,11 @@ static void transport_lun_remove_cmd(struct se_cmd *cmd) { struct se_lun *lun = cmd->se_lun; - if (!lun || !cmd->lun_ref_active) + if (!lun) return; - percpu_ref_put(&lun->lun_ref); + if (cmpxchg(&cmd->lun_ref_active, true, false)) + percpu_ref_put(&lun->lun_ref); } void transport_cmd_finish_abort(struct se_cmd *cmd, int remove) diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index d28418645b000719790c5a4da0989bfd415baffb..909dacbd230f54139de6751a6e452ff91711ef8b 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -552,7 +552,7 @@ struct se_cmd { void *priv; /* Used for lun->lun_ref counting */ - bool lun_ref_active; + int lun_ref_active; /* DIF related members */ enum target_prot_op prot_op;