3.11.10.4 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Richard Weinberger <rich...@nod.at>

commit a926592f5e4e900f3fa903298c4619a131e60963 upstream.

rhine_reset_task() misses to disable the tx scheduler upon reset,
this can lead to a crash if work is still scheduled while we're resetting
the tx queue.

Fixes:
[   93.591707] BUG: unable to handle kernel NULL pointer dereference at 0000004c
[   93.595514] IP: [<c119d10d>] rhine_napipoll+0x491/0x6

Signed-off-by: Richard Weinberger <rich...@nod.at>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Luis Henriques <luis.henriq...@canonical.com>
---
 drivers/net/ethernet/via/via-rhine.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/via/via-rhine.c 
b/drivers/net/ethernet/via/via-rhine.c
index 685d8e2..b83c080 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -1615,6 +1615,7 @@ static void rhine_reset_task(struct work_struct *work)
                goto out_unlock;
 
        napi_disable(&rp->napi);
+       netif_tx_disable(dev);
        spin_lock_bh(&rp->lock);
 
        /* clear all descriptors */
-- 
1.8.3.2

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