diff options
| author |   Larry Finger <Larry.Finger@lwfinger.net> | 2009-04-09 07:11:55 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-04-13 15:44:35 -0700 |
| commit | 710b523ac59426e8bfdea3533f42118e46b9cbfb (patch) | |
| tree | 49f41b4ab6fc8404da5638db06eacf765bd302b9 /drivers/net/usb | |
| parent | at76c50x-usb: remove pointless conditional before kfree_skb() (diff) | |
| download | linux-dev-710b523ac59426e8bfdea3533f42118e46b9cbfb.tar.xz linux-dev-710b523ac59426e8bfdea3533f42118e46b9cbfb.zip | |
kaweth: Clean up code
The driver kaweth yields a -EBUSY error when starting, and a -ETIME
error when shutting down. These errors are avoided, and the RX status
is further checked for other potential errors.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb')
| -rw-r--r-- | drivers/net/usb/kaweth.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c index 3d0d0b0b37c5..e01314789718 100644 --- a/drivers/net/usb/kaweth.c +++ b/drivers/net/usb/kaweth.c @@ -31,7 +31,6 @@ ****************************************************************/ /* TODO: - * Fix in_interrupt() problem * Develop test procedures for USB net interfaces * Run test procedures * Fix bugs from previous two steps @@ -606,14 +605,30 @@ static void kaweth_usb_receive(struct urb *urb) struct sk_buff *skb; - if(unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) - /* we are killed - set a flag and wake the disconnect handler */ - { + if (unlikely(status == -EPIPE)) { + kaweth->stats.rx_errors++; kaweth->end = 1; wake_up(&kaweth->term_wait); + dbg("Status was -EPIPE."); return; } - + if (unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) { + /* we are killed - set a flag and wake the disconnect handler */ + kaweth->end = 1; + wake_up(&kaweth->term_wait); + dbg("Status was -ECONNRESET or -ESHUTDOWN."); + return; + } + if (unlikely(status == -EPROTO || status == -ETIME || + status == -EILSEQ)) { + kaweth->stats.rx_errors++; + dbg("Status was -EPROTO, -ETIME, or -EILSEQ."); + return; + } + if (unlikely(status == -EOVERFLOW)) { + kaweth->stats.rx_errors++; + dbg("Status was -EOVERFLOW."); + } spin_lock(&kaweth->device_lock); if (IS_BLOCKED(kaweth->status)) { spin_unlock(&kaweth->device_lock); @@ -883,13 +898,16 @@ static void kaweth_set_rx_mode(struct net_device *net) ****************************************************************/ static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) { + int result; __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; + kaweth->packet_filter_bitmap = 0; if (packet_filter_bitmap == 0) return; - { - int result; + if (in_interrupt()) + return; + result = kaweth_control(kaweth, usb_sndctrlpipe(kaweth->dev, 0), KAWETH_COMMAND_SET_PACKET_FILTER, @@ -906,7 +924,6 @@ static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) else { dbg("Set Rx mode to %d", packet_filter_bitmap); } - } } /**************************************************************** |