From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: [PATCH net-next] xen-netback: fix sparse warning
Date: Wed, 10 Apr 2013 13:54:46 -0700
Message-ID: <20130410135446.3965872e@nehalam.linuxnetplumber.net>
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Cc: netdev@vger.kernel.org
To: Ian Campbell <ian.campbell@citrix.com>,
	David Miller <davem@davemloft.net>
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Fix warning about 0 used as NULL.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

--- a/drivers/net/xen-netback/netback.c	2013-04-10 09:10:46.559612835 -0700
+++ b/drivers/net/xen-netback/netback.c	2013-04-10 13:21:51.408176509 -0700
@@ -1551,7 +1551,7 @@ static void xen_netbk_idx_release(struct
 
 	xenvif_put(vif);
 
-	netbk->mmap_pages[pending_idx]->mapping = 0;
+	netbk->mmap_pages[pending_idx]->mapping = NULL;
 	put_page(netbk->mmap_pages[pending_idx]);
 	netbk->mmap_pages[pending_idx] = NULL;
 }