When unplugging RTL8152 Fast Ethernet Adapter which is plugged into an USB HUB, the driver would get -EPROTO for bulk transfer. There is a high probability to get the soft/hard lockup information if the driver continues to submit Rx before the HUB completes the detection of all hub ports and issue the disconnect event. [ 644.786219] net_ratelimit: 113887 callbacks suppressed [ 644.786239] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786335] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786369] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786431] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786493] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786555] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786617] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786678] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786740] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 644.786802] r8152 1-1.2.4:1.0 eth0: Rx status -71 [ 645.041159] mtk-scp 10500000.scp: scp_ipi_send: IPI timeout! [ 645.041211] cros-ec-rpmsg 10500000.scp.cros-ec-rpmsg.13.-1: rpmsg send failed [ 649.183350] watchdog: BUG: soft lockup - CPU#0 stuck for 12s! [migration/0:14] Signed-off-by: Jason-ch Chen <jason-ch.chen@xxxxxxxxxxxx> --- drivers/net/usb/r8152.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 60ba9b734055..250718f0dcb7 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -1771,6 +1771,7 @@ static void read_bulk_callback(struct urb *urb) netif_device_detach(tp->netdev); return; case -ENOENT: + case -EPROTO: return; /* the urb is in unlink state */ case -ETIME: if (net_ratelimit()) -- 2.18.0
