[PATCH] USBATM: -EILSEQ workaround

Don't throttle on -EILSEQ urb status if requested by a minidriver.
It seems the ueagle modems are buggy, giving -EILSEQ when they
have no data to send.  The ueagle change will be sent separately
by the ueagle guys.  Patch by Matthieu Castet.

Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/atm/usbatm.c

@@ -270,7 +270,10 @@ static void usbatm_complete(struct urb *urb, struct pt_regs *regs)
 
 	spin_unlock_irqrestore(&channel->lock, flags);
 
-	if (unlikely(urb->status)) {
+	if (unlikely(urb->status) &&
+			(!(channel->usbatm->flags & UDSL_IGNORE_EILSEQ) ||
+			 urb->status != -EILSEQ ))
+	{
 		if (printk_ratelimit())
 			atm_warn(channel->usbatm, "%s: urb 0x%p failed (%d)!\n",
 				__func__, urb, urb->status);

drivers/usb/atm/usbatm.h

@@ -88,6 +88,7 @@
 
 #define UDSL_SKIP_HEAVY_INIT	(1<<0)
 #define UDSL_USE_ISOC		(1<<1)
+#define UDSL_IGNORE_EILSEQ	(1<<2)
 
 
 /* mini driver */