zd1211rw: add useful debug output

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index 0631be6a53ac..f6df3665fdb6 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -411,8 +411,10 @@ static void int_urb_complete(struct urb *urb)
         case -ENOENT:
         case -ECONNRESET:
         case -EPIPE:
+                dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
                 return;
         default:
+                dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
                 goto resubmit;
         }
 
@@ -613,6 +615,7 @@ static void handle_rx_packet(struct zd_usb *usb, const u8 *buffer,
 
 static void rx_urb_complete(struct urb *urb)
 {
+        int r;
         struct zd_usb *usb;
         struct zd_usb_rx *rx;
         const u8 *buffer;
@@ -627,6 +630,7 @@ static void rx_urb_complete(struct urb *urb)
         case -ENOENT:
         case -ECONNRESET:
         case -EPIPE:
+                dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
                 return;
         default:
                 dev_dbg_f(urb_dev(urb), "urb %p error %d\n", urb, urb->status);
@@ -668,7 +672,9 @@ static void rx_urb_complete(struct urb *urb)
         }
 
 resubmit:
-        usb_submit_urb(urb, GFP_ATOMIC);
+        r = usb_submit_urb(urb, GFP_ATOMIC);
+        if (r)
+                dev_dbg_f(urb_dev(urb), "urb %p resubmit error %d\n", urb, r);
 }
 
 static struct urb *alloc_rx_urb(struct zd_usb *usb)
@@ -1001,6 +1007,7 @@ int zd_usb_tx(struct zd_usb *usb, struct sk_buff *skb)
 
         r = usb_submit_urb(urb, GFP_ATOMIC);
         if (r) {
+                dev_dbg_f(zd_usb_dev(usb), "error submit urb %p %d\n", urb, r);
                 usb_unanchor_urb(urb);
                 skb_unlink(skb, &tx->submitted_skbs);
                 goto error;