Merge branches 'release' and 'dmi' into release

[mv-sheeva.git] / fs / ecryptfs / main.c

diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index dc620fc16595bb06638c3bd854b19667df0f3954..778c420e4cac4c5d8bfda354c260e819106967c4 100644 (file)
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -410,9 +410,13 @@ static int ecryptfs_parse_options(struct super_block *sb, char *options)
        if (!cipher_key_bytes_set) {
                mount_crypt_stat->global_default_cipher_key_size = 0;
        }
-       rc = ecryptfs_add_new_key_tfm(
-               NULL, mount_crypt_stat->global_default_cipher_name,
-               mount_crypt_stat->global_default_cipher_key_size);
+       mutex_lock(&key_tfm_list_mutex);
+       if (!ecryptfs_tfm_exists(mount_crypt_stat->global_default_cipher_name,
+                                NULL))
+               rc = ecryptfs_add_new_key_tfm(
+                       NULL, mount_crypt_stat->global_default_cipher_name,
+                       mount_crypt_stat->global_default_cipher_key_size);
+       mutex_unlock(&key_tfm_list_mutex);
        if (rc) {
                printk(KERN_ERR "Error attempting to initialize cipher with "
                       "name = [%s] and key size = [%td]; rc = [%d]\n",