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Date: Thu, 29 Jul 2010 13:01:36 +0200 From: Lino Sanfilippo <LinoSanfilippo@....de> To: tyhicks@...ux.vnet.ibm.com Cc: kirkland@...onical.com, ecryptfs-devel@...ts.launchpad.net, linux-kernel@...r.kernel.org Subject: [PATCH] ecryptfs (repost): 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@....de> --- This patch is against 2.6.35-rc5. --- a/fs/ecryptfs/inode.c 2010-07-12 23:55:33.000000000 +0200 +++ b/fs/ecryptfs/inode.c 2010-07-19 19:21:16.000000000 +0200 @@ -264,7 +264,7 @@ int ecryptfs_lookup_and_interpose_lower( 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( 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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