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| author | Jan Kara <jack@suse.cz> | 2005-11-28 13:44:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-28 14:42:26 -0800 |
| commit | 154f484b92e5c25c400f6903512c511644a49322 (patch) | |
| tree | 49b2e6a4fd1cbe51f0780aa568cfa7c14bbdc1e4 /fs | |
| parent | 6aea114a728db9296f42102d4885e7fb035de0a9 (diff) | |
| download | kernel-common-154f484b92e5c25c400f6903512c511644a49322.tar.gz kernel-common-154f484b92e5c25c400f6903512c511644a49322.tar.bz2 kernel-common-154f484b92e5c25c400f6903512c511644a49322.zip | |
[PATCH] Fix oops in vfs_quotaon_mount()
When quota file specified in mount options did not exist, we tried to
dereference NULL pointer later. Fix it.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/dquot.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/dquot.c b/fs/dquot.c index 05b60283c9c2..2a62b3dc20ec 100644 --- a/fs/dquot.c +++ b/fs/dquot.c @@ -1513,10 +1513,16 @@ int vfs_quota_on_mount(struct super_block *sb, char *qf_name, if (IS_ERR(dentry)) return PTR_ERR(dentry); + if (!dentry->d_inode) { + error = -ENOENT; + goto out; + } + error = security_quota_on(dentry); if (!error) error = vfs_quota_on_inode(dentry->d_inode, type, format_id); +out: dput(dentry); return error; } |