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authorJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-08-27 21:59:59 -0500
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-08-27 21:59:59 -0500
commit8ce7a9c159c8c4eb480f0a65c6af753dbf9a1a70 (patch)
treebe59573c0af3617d0cd8a7d61f0ed119e58b1156 /kernel/resource.c
parentd2afb3ae04e36dbc6e9eb2d8bd54406ff7b6b3bd (diff)
parent01da5fd83d6b2c5e36b77539f6cbdd8f49849225 (diff)
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Merge ../linux-2.6
Diffstat (limited to 'kernel/resource.c')
-rw-r--r--kernel/resource.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 0dd3a857579e..46286434af80 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -244,6 +244,7 @@ int find_next_system_ram(struct resource *res)
start = res->start;
end = res->end;
+ BUG_ON(start >= end);
read_lock(&resource_lock);
for (p = iomem_resource.child; p ; p = p->sibling) {
@@ -254,15 +255,17 @@ int find_next_system_ram(struct resource *res)
p = NULL;
break;
}
- if (p->start >= start)
+ if ((p->end >= start) && (p->start < end))
break;
}
read_unlock(&resource_lock);
if (!p)
return -1;
/* copy data */
- res->start = p->start;
- res->end = p->end;
+ if (res->start < p->start)
+ res->start = p->start;
+ if (res->end > p->end)
+ res->end = p->end;
return 0;
}
#endif