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| author | Shen Feng <shen@cn.fujitsu.com> | 2008-07-13 21:03:31 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-07-13 21:03:31 -0400 |
| commit | cfbe7e4f5e4a0e1fc2ff23b167bfb3fa992f623d (patch) | |
| tree | f1bb120c742d88e9a362d6cc142f0f855d47cd12 /fs/ext4/mballoc.c | |
| parent | f795e1407343ebe6597653f4a6a7f770676e84c5 (diff) | |
| download | blackbird-op-linux-cfbe7e4f5e4a0e1fc2ff23b167bfb3fa992f623d.tar.gz blackbird-op-linux-cfbe7e4f5e4a0e1fc2ff23b167bfb3fa992f623d.zip | |
ext4: error proc entry creation when the fs/ext4 is not correctly created
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mballoc.c')
| -rw-r--r-- | 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 21ee6d42ee7b..771a1d608528 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2661,6 +2661,10 @@ 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); |
