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authorhayeswang <hayeswang@realtek.com>2015-01-09 10:26:36 +0800
committerDavid S. Miller <davem@davemloft.net>2015-01-12 16:10:22 -0500
commitef827a5b578c4255043a0c0032c88799fb4a774b (patch)
tree6e5d7fc4695dcdc621efab65ba4688ed2c19ecc7 /drivers/net/usb/r8152.c
parentaa2e092671c84b149ba0f9ad7185ace357fb4a33 (diff)
downloadtalos-op-linux-ef827a5b578c4255043a0c0032c88799fb4a774b.tar.gz
talos-op-linux-ef827a5b578c4255043a0c0032c88799fb4a774b.zip
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>
Diffstat (limited to 'drivers/net/usb/r8152.c')
-rw-r--r--drivers/net/usb/r8152.c5
1 files changed, 5 insertions, 0 deletions
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);
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