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authorLarry Finger <Larry.Finger@lwfinger.net>2009-04-09 07:11:55 +0000
committerDavid S. Miller <davem@davemloft.net>2009-04-13 15:44:35 -0700
commit710b523ac59426e8bfdea3533f42118e46b9cbfb (patch)
tree49f41b4ab6fc8404da5638db06eacf765bd302b9 /drivers/net/usb/kaweth.c
parent54cb2284dce50672c40248b8e95940318ec2ca41 (diff)
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/kaweth.c')
-rw-r--r--drivers/net/usb/kaweth.c33
1 files changed, 25 insertions, 8 deletions
diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
index 3d0d0b0b37c..e0131478971 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);
}
- }
}
/****************************************************************