From 0d9b6e738a22244d38def847a24e5ee6fcedd898 Mon Sep 17 00:00:00 2001
From: Michael Thalmeier <Michael.Thalmeier@sigmatek.at>
Date: Fri, 15 Jul 2011 01:28:26 +0000
Subject: [PATCH] r6040: only disable RX interrupt if napi_schedule_prep is
 successful

When receiving the first RX interrupt before the internal call
to napi_schedule_prep is successful the RX interrupt gets disabled
and is never enabled again as the poll function never gets executed.

Signed-off-by: Michael Thalmeier <Michael.Thalmeier@sigmatek.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
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