From a5f8967e171a6fa27da8e6d06d3ef85f7fed43c1 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@sunset.davemloft.net>
Date: Wed, 18 Jul 2007 00:33:23 -0700
Subject: [SPARC64]: Set vio->desc_buf to NULL after freeing.

Otherwise we trigger assertions on the next link-up.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc64/kernel/viohs.c b/arch/sparc64/kernel/viohs.c
index 8eb381fa..09126fc 100644
--- a/arch/sparc64/kernel/viohs.c
+++ b/arch/sparc64/kernel/viohs.c
@@ -90,6 +90,7 @@ static void flush_rx_dring(struct vio_driver_state *vio)
 
 	BUG_ON(!vio->desc_buf);
 	kfree(vio->desc_buf);
+	vio->desc_buf = NULL;
 
 	memset(dr, 0, sizeof(*dr));
 	dr->ident = ident;
-- 
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