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authorJulia Lawall <julia@diku.dk>2010-08-06 22:58:49 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-13 13:30:52 -0700
commit8a7da74a3f365faac6d1bb9b7d5a8d65730aefd6 (patch)
tree2904fad0990cb65b34a17eaef5a66d6cd920b497
parenta672b7313b63923f9eb6025adf3c9ef34be00a2a (diff)
downloadlinux-2.6.34-ux500-8a7da74a3f365faac6d1bb9b7d5a8d65730aefd6.tar.gz
fs/ecryptfs/file.c: introduce missing free
commit ceeab92971e8af05c1e81a4ff2c271124b55bb9b upstream. The comments in the code indicate that file_info should be released if the function fails. This releasing is done at the label out_free, not out. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = kmem_cache_zalloc(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return <+...x...+>; | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmem_cache_zalloc %s" % (p1[0].file,p1[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--fs/ecryptfs/file.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 6e4f84cf73e..622c9514080 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -199,7 +199,7 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
"the persistent file for the dentry with name "
"[%s]; rc = [%d]\n", __func__,
ecryptfs_dentry->d_name.name, rc);
- goto out;
+ goto out_free;
}
}
if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY)
@@ -207,7 +207,7 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
rc = -EPERM;
printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs "
"file must hence be opened RO\n", __func__);
- goto out;
+ goto out_free;
}
ecryptfs_set_file_lower(
file, ecryptfs_inode_to_private(inode)->lower_file);