From: Shen Feng <shen@cn.fujitsu.com>
To: linux-ext4@vger.kernel.org, Theodore Tso <tytso@MIT.EDU>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH] ext4: error proc entry creation when the fs/ext4 is not correctly created
Date: Fri, 16 May 2008 17:41:11 +0800 [thread overview]
Message-ID: <482D56B7.1030607@cn.fujitsu.com> (raw)
When the directory fs/ext4 is not correctly created under proc,
the entry under this directory should not be created.
Signed-off-by: Shen Feng <shen@cn.fujitsu.com>
---
fs/ext4/mballoc.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index b128bdc..3c616f2 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2639,6 +2639,10 @@ static int ext4_mb_init_per_dev_proc(struct super_block *sb)
struct proc_dir_entry *proc;
char devname[64];
+ if (proc_root_ext4 == NULL) {
+ sbi->s_mb_proc = NULL;
+ return -EINVAL;
+ }
bdevname(sb->s_bdev, devname);
sbi->s_mb_proc = proc_mkdir(devname, proc_root_ext4);
--
1.5.4.1
reply other threads:[~2008-05-16 9:43 UTC|newest]
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