lkml.org 
[lkml]   [2014]   [Oct]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH] Frontswap: fix the condition in BUG_ON
From
From 012a564c7210346b99d12e3d2485542bb090586e Mon Sep 17 00:00:00 2001
From: Haifeng Li <omycle@gmail.com>
Date: Fri, 31 Oct 2014 17:40:44 +0800
Subject: [PATCH] Frontswap: fix the condition in BUG_ON

The largest index of swap device is MAX_SWAPFILES-1. So the type
should be less than MAX_SWAPFILES.

Signed-off-by: Haifeng Li <omycle@gmail.com>
---
mm/frontswap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/frontswap.c b/mm/frontswap.c
index c30eec5..1b80c05 100644
--- a/mm/frontswap.c
+++ b/mm/frontswap.c
@@ -182,7 +182,7 @@ void __frontswap_init(unsigned type, unsigned long *map)
if (frontswap_ops)
frontswap_ops->init(type);
else {
- BUG_ON(type > MAX_SWAPFILES);
+ BUG_ON(type >= MAX_SWAPFILES);
set_bit(type, need_init);
}
}
--
1.9.1

\
 
 \ /
  Last update: 2014-10-31 11:41    [W:0.032 / U:1.776 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site