From: Alex Williamson <alex.williamson@hp.com>
Date: Tue, 6 Jun 2006 16:36:27 +0000 (-0600)
Subject: [IA64] sanity check reserved region usage
X-Git-Tag: v2.6.18-rc1~1090
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5eb1d63f5fc8455269c2756223b3cf3779fd2f7a;p=linux-2.6

[IA64] sanity check reserved region usage

One more trivial, stand-alone patch from the Xen/ia64 review.  Sanity
check usage of the reserved region numbers.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---

diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index e4dfda1eb7..6dba2d63f2 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -260,6 +260,7 @@ reserve_memory (void)
 	n++;
 
 	num_rsvd_regions = n;
+	BUG_ON(IA64_MAX_RSVD_REGIONS + 1 < n);
 
 	sort_regions(rsvd_region, num_rsvd_regions);
 }