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Date: Tue, 2 Feb 2010 14:00:35 +0100
From: Stefan Seyfried <stefan.seyfried@...glemail.com>
To: linux-kernel@...r.kernel.org
Cc: w@....eu, Stefan Seyfried <seife@...airon.com>
Subject: [PATCH 2.4] FAT: do not continue in fat_get_block if bmap fails
From: Stefan Seyfried <seife@...airon.com>
There is no use in continuing the write operation after fat_bmap() fails.
(This successfully killed a VFAT FS for me).
The corresponding code in 2.6 does return here as well, AFAICT.
Signed-off-by: Stefan Seyfried <seife@...airon.com>
---
fs/fat/file.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/fs/fat/file.c b/fs/fat/file.c
index ade1a71..75efe74 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -72,8 +72,10 @@ int fat_get_block(struct inode *inode, long iblock, struct buffer_head *bh_resul
}
MSDOS_I(inode)->mmu_private += sb->s_blocksize;
phys = fat_bmap(inode, iblock);
- if (!phys)
+ if (!phys) {
BUG();
+ return -EIO;
+ }
bh_result->b_dev = inode->i_dev;
bh_result->b_blocknr = phys;
bh_result->b_state |= (1UL << BH_Mapped);
--
1.6.4.2
--
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