From: Lino Sanfilippo Date: Thu, 29 Jul 2010 11:01:36 +0000 (+0200) Subject: ecryptfs: release reference to lower mount if interpose fails X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=31f73bee3e170b7cabb35db9e2f4bf7919b9d036;p=linux-beck.git 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 Cc: stable@kernel.org Signed-off-by: Tyler Hicks --- 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;