From ef827a5b578c4255043a0c0032c88799fb4a774b Mon Sep 17 00:00:00 2001 From: hayeswang Date: Fri, 9 Jan 2015 10:26:36 +0800 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index cd9338837ce6..b23426e4952c 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -1789,6 +1789,11 @@ int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags) { 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); -- 2.20.1