From 4e7c75e06a3af9e04c42781b96e8f6918ba2677a Mon Sep 17 00:00:00 2001
From: Hirofumi Ogawa <hirofumi@mail.parknet.co.jp>
Date: Tue, 19 Oct 2004 18:16:30 -0700
Subject: [PATCH] [PATCH] FAT: check free_clusters value

This patch make sure it's <= sbi->clusters.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 fs/fat/inode.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 2673d8779cdc5..ea904da486c68 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -997,6 +997,9 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	}
 
 	sbi->clusters = total_clusters;
+	/* check the free_clusters, it's not necessarily correct */
+	if (sbi->free_clusters != -1 && sbi->free_clusters > sbi->clusters)
+		sbi->free_clusters = -1;
 
 	brelse(bh);
 
-- 
2.53.0