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| author | Lino Sanfilippo <LinoSanfilippo@gmx.de> | 2010-07-29 13:01:36 +0200 |
|---|---|---|
| committer | Tyler Hicks <tyhicks@linux.vnet.ibm.com> | 2010-08-09 10:33:05 -0500 |
| commit | 31f73bee3e170b7cabb35db9e2f4bf7919b9d036 (patch) | |
| tree | 70c0ebb11bb3839050df7fa26b42c94d05cf6a3c /fs/ecryptfs | |
| parent | c43f7b8fb03be8bcc579bfc4e6ab70eac887ab55 (diff) | |
| download | linux-31f73bee3e170b7cabb35db9e2f4bf7919b9d036.tar.gz linux-31f73bee3e170b7cabb35db9e2f4bf7919b9d036.tar.bz2 linux-31f73bee3e170b7cabb35db9e2f4bf7919b9d036.zip | |
ecryptfs: release reference to lower mount if interpose fails
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>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Diffstat (limited to 'fs/ecryptfs')
| -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; |