linux-kernel - [PATCH] lib/genalloc.c: fix the end addr check in addr_in_gen

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Message-Id: <1418956259-13003-1-git-send-email-toshik@chromium.org>
Date:	Thu, 18 Dec 2014 18:30:59 -0800
From:	Toshi Kikuchi <toshik@...omium.org>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH] lib/genalloc.c: fix the end addr check in addr_in_gen_pool()

Since chunk->end_addr is (chunk->start_addr + size - 1),
the end address to compare should be (start + size - 1).

Signed-off-by: Toshi Kikuchi <toshik@...omium.org>
---
 lib/genalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/genalloc.c b/lib/genalloc.c
index 2e65d20..42a95e9 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -415,7 +415,7 @@ bool addr_in_gen_pool(struct gen_pool *pool, unsigned long start,
 			size_t size)
 {
 	bool found = false;
-	unsigned long end = start + size;
+	unsigned long end = start + size - 1;
 	struct gen_pool_chunk *chunk;
 
 	rcu_read_lock();
-- 
2.2.0.rc0.207.ga3a616c

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