From 2ed9aae0facd603f9f9b8347d1d7e9de23bde286 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Wed, 4 Aug 2010 14:17:17 +1000
Subject: memblock: Fix memblock_is_region_reserved() to return a boolean
All callers expect a boolean result which is true if the region
overlaps a reserved region. However, the implementation actually
returns -1 if there is no overlap, and a region index (0 based)
if there is.
Make it behave as callers (and common sense) expect.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
mm/memblock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'mm/memblock.c')
diff --git a/mm/memblock.c b/mm/memblock.c
index 3024eb30fc27..43840b305ecb 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -504,7 +504,7 @@ int __init memblock_is_reserved(u64 addr)
int memblock_is_region_reserved(u64 base, u64 size)
{
- return memblock_overlaps_region(&memblock.reserved, base, size);
+ return memblock_overlaps_region(&memblock.reserved, base, size) >= 0;
}
/*
--
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