Since create_singlethread_workqueue uses kzalloc internally, it can be failed in memory pressure, so need to handle it. Signed-off-by: Insu Yun <wuninsu@xxxxxxxxx> --- drivers/infiniband/hw/nes/nes_cm.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index cb9f0f2..23afad6 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -2833,7 +2833,7 @@ static struct nes_cm_core *nes_cm_alloc_core(void) /* alloc top level core control structure */ cm_core = kzalloc(sizeof(*cm_core), GFP_KERNEL); if (!cm_core) - return NULL; + goto enomem_3; INIT_LIST_HEAD(&cm_core->connected_nodes); init_timer(&cm_core->tcp_timer); @@ -2856,12 +2856,23 @@ static struct nes_cm_core *nes_cm_alloc_core(void) nes_debug(NES_DBG_CM, "Enable QUEUE EVENTS\n"); cm_core->event_wq = create_singlethread_workqueue("nesewq"); + if (!cm_core->event_wq) + goto enomem_2; cm_core->post_event = nes_cm_post_event; nes_debug(NES_DBG_CM, "Enable QUEUE DISCONNECTS\n"); cm_core->disconn_wq = create_singlethread_workqueue("nesdwq"); + if (!cm_core->disconn_wq) + goto enomem_1; print_core(cm_core); return cm_core; + +enomem_1: + destroy_workqueue(cm_core->event_wq); +enomem_2: + kfree(cm_core); +enomem_3: + return NULL; } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html