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authorRoberto Sassu <roberto.sassu@polito.it>2010-11-03 13:11:28 +0300
committerTyler Hicks <tyhicks@linux.vnet.ibm.com>2011-01-17 20:24:42 +0300
commit27992890b02d340198a3a22fc210d13684a41564 (patch)
tree7ece682994e705791c2c96a02cb139c1f42b0239 /fs/ecryptfs/file.c
parent070baa51286e5cf59dde6be52fa23647ffb5d32d (diff)
downloadlinux-27992890b02d340198a3a22fc210d13684a41564.tar.xz
ecryptfs: test lower_file pointer when lower_file_mutex is locked
This patch prevents the lower_file pointer in the 'ecryptfs_inode_info' structure to be checked when the mutex 'lower_file_mutex' is not locked. Signed-off-by: Roberto Sassu <roberto.sassu@polito.it> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Diffstat (limited to 'fs/ecryptfs/file.c')
-rw-r--r--fs/ecryptfs/file.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 679817e82484..99259f850e58 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -191,15 +191,13 @@ static int ecryptfs_open(struct inode *inode, struct file *file)
| ECRYPTFS_ENCRYPTED);
}
mutex_unlock(&crypt_stat->cs_mutex);
- if (!ecryptfs_inode_to_private(inode)->lower_file) {
- rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
- if (rc) {
- printk(KERN_ERR "%s: Error attempting to initialize "
- "the persistent file for the dentry with name "
- "[%s]; rc = [%d]\n", __func__,
- ecryptfs_dentry->d_name.name, rc);
- goto out_free;
- }
+ rc = ecryptfs_init_persistent_file(ecryptfs_dentry);
+ if (rc) {
+ printk(KERN_ERR "%s: Error attempting to initialize "
+ "the persistent file for the dentry with name "
+ "[%s]; rc = [%d]\n", __func__,
+ ecryptfs_dentry->d_name.name, rc);
+ goto out_free;
}
if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY)
&& !(file->f_flags & O_RDONLY)) {