ecryptfs: fix unlocking in error paths

Thanks to Josef Bacik for finding these.

A couple of ecryptfs error paths don't properly unlock things they locked.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: Josef Bacik <jbacik@redhat.com>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 67e8b16..f8ef0af 100644 (file)
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -799,7 +799,7 @@ int ecryptfs_init_crypt_ctx(struct ecryptfs_crypt_stat *crypt_stat)
        rc = ecryptfs_crypto_api_algify_cipher_name(&full_alg_name,
                                                    crypt_stat->cipher, "cbc");
        if (rc)
-               goto out;
+               goto out_unlock;
        crypt_stat->tfm = crypto_alloc_blkcipher(full_alg_name, 0,
                                                 CRYPTO_ALG_ASYNC);
        kfree(full_alg_name);
@@ -808,12 +808,12 @@ int ecryptfs_init_crypt_ctx(struct ecryptfs_crypt_stat *crypt_stat)
                ecryptfs_printk(KERN_ERR, "cryptfs: init_crypt_ctx(): "
                                "Error initializing cipher [%s]\n",
                                crypt_stat->cipher);
-               mutex_unlock(&crypt_stat->cs_tfm_mutex);
-               goto out;
+               goto out_unlock;
        }
        crypto_blkcipher_set_flags(crypt_stat->tfm, CRYPTO_TFM_REQ_WEAK_KEY);
-       mutex_unlock(&crypt_stat->cs_tfm_mutex);
        rc = 0;
+out_unlock:
+       mutex_unlock(&crypt_stat->cs_tfm_mutex);
 out:
        return rc;
 }

diff --git a/fs/ecryptfs/messaging.c b/fs/ecryptfs/messaging.c
index a96d341..9cc2aec 100644 (file)
--- a/fs/ecryptfs/messaging.c
+++ b/fs/ecryptfs/messaging.c
@@ -427,6 +427,7 @@ int ecryptfs_init_messaging(unsigned int transport)
        if (!ecryptfs_daemon_id_hash) {
                rc = -ENOMEM;
                ecryptfs_printk(KERN_ERR, "Failed to allocate memory\n");
+               mutex_unlock(&ecryptfs_daemon_id_hash_mux);
                goto out;
        }
        for (i = 0; i < ecryptfs_hash_buckets; i++)