diff options
| author | Eric Sandeen <sandeen@redhat.com> | 2007-12-22 23:03:26 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-23 21:54:37 +0100 |
| commit | 16317ec2e5a85884fea680d24c1b228a5602159f (patch) | |
| tree | 68b24327c001d9f0def6bad8ba7ef0b2522a464c /fs/ecryptfs | |
| parent | ecryptfs: fix unlocking in error paths (diff) | |
| download | linux-16317ec2e5a85884fea680d24c1b228a5602159f.tar.xz linux-16317ec2e5a85884fea680d24c1b228a5602159f.zip | |
ecryptfs: redo dget,mntget on dentry_open failure
Thanks to Jeff Moyer for pointing this out.
If the RDWR dentry_open() in ecryptfs_init_persistent_file fails,
it will do a dput/mntput. Need to re-take references if we
retry as RDONLY.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Mike Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ecryptfs')
| -rw-r--r-- | fs/ecryptfs/main.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c index a277754da171..e5580bcb923a 100644 --- a/fs/ecryptfs/main.c +++ b/fs/ecryptfs/main.c @@ -138,11 +138,14 @@ int ecryptfs_init_persistent_file(struct dentry *ecryptfs_dentry) inode_info->lower_file = dentry_open(lower_dentry, lower_mnt, (O_RDWR | O_LARGEFILE)); - if (IS_ERR(inode_info->lower_file)) + if (IS_ERR(inode_info->lower_file)) { + dget(lower_dentry); + mntget(lower_mnt); inode_info->lower_file = dentry_open(lower_dentry, lower_mnt, (O_RDONLY | O_LARGEFILE)); + } if (IS_ERR(inode_info->lower_file)) { printk(KERN_ERR "Error opening lower persistent file " "for lower_dentry [0x%p] and lower_mnt [0x%p]\n", |