r8152: check the status before submitting rx
Don't submit the rx if the device is unplugged, stopped, or
linking down.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index cd93388..b23426e 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1789,6 +1789,11 @@
{
int ret;
+ /* The rx would be stopped, so skip submitting */
+ if (test_bit(RTL8152_UNPLUG, &tp->flags) ||
+ !test_bit(WORK_ENABLE, &tp->flags) || !netif_carrier_ok(tp->netdev))
+ return 0;
+
usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
agg->head, agg_buf_sz,
(usb_complete_t)read_bulk_callback, agg);