From: David S. Miller <davem@davemloft.net>
Date: Mon, 1 Dec 2008 10:48:26 +0000 (-0800)
Subject: sparc64: Fix offset calculation in compute_size()
X-Git-Tag: v2.6.28-rc8~72^2
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=b270ee8a9fc9547eb781ce9ccd379450bcf9a204;p=linux-2.6-omap-h63xx.git

sparc64: Fix offset calculation in compute_size()

The fault address is somewhere inside of the buffer, not
before it.

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

diff --git a/arch/sparc64/lib/user_fixup.c b/arch/sparc64/lib/user_fixup.c
index 19d1fdb17d0..05a361b0a1a 100644
--- a/arch/sparc64/lib/user_fixup.c
+++ b/arch/sparc64/lib/user_fixup.c
@@ -24,7 +24,7 @@ static unsigned long compute_size(unsigned long start, unsigned long size, unsig
 	if (fault_addr < start || fault_addr >= end) {
 		*offset = 0;
 	} else {
-		*offset = start - fault_addr;
+		*offset = fault_addr - start;
 		size = end - fault_addr;
 	}
 	return size;