Messages in this thread Patch in this message | | | From | Hayes Wang <> | Subject | [PATCH net-next v2 2/2] r8152: check the status before submitting rx | Date | Mon, 22 Dec 2014 14:52:56 +0800 |
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Don't submit the rx if the device is unplugged, stopped, or linking down.
Signed-off-by: Hayes Wang <hayeswang@realtek.com> --- 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 cbe450c..8ecc2df 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); -- 2.1.0
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