diff options
| author | Lino Sanfilippo <LinoSanfilippo@gmx.de> | 2010-07-29 13:01:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-08-13 13:30:51 -0700 |
| commit | a672b7313b63923f9eb6025adf3c9ef34be00a2a (patch) | |
| tree | 01910889d16b9a60a8f0fe3ada20931cec319404 /fs | |
| parent | 46c7e62e6b5fd85c82c660249ab411773f6450c1 (diff) | |
ecryptfs: release reference to lower mount if interpose fails
commit 31f73bee3e170b7cabb35db9e2f4bf7919b9d036 upstream.
In ecryptfs_lookup_and_interpose_lower() the lower mount is not decremented
if allocation of a dentry info struct failed. As a result the lower filesystem
cant be unmounted any more (since it is considered busy). This patch corrects
the reference counting.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ecryptfs/inode.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 31ef5252f0fe..8cd617b66baa 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -264,7 +264,7 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry, printk(KERN_ERR "%s: Out of memory whilst attempting " "to allocate ecryptfs_dentry_info struct\n", __func__); - goto out_dput; + goto out_put; } ecryptfs_set_dentry_lower(ecryptfs_dentry, lower_dentry); ecryptfs_set_dentry_lower_mnt(ecryptfs_dentry, lower_mnt); @@ -339,8 +339,9 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry, out_free_kmem: kmem_cache_free(ecryptfs_header_cache_2, page_virt); goto out; -out_dput: +out_put: dput(lower_dentry); + mntput(lower_mnt); d_drop(ecryptfs_dentry); out: return rc; |