summaryrefslogtreecommitdiffstats
path: root/fs/ecryptfs/keystore.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ecryptfs/keystore.c')
-rw-r--r--fs/ecryptfs/keystore.c48
1 files changed, 12 insertions, 36 deletions
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index fa218cd64f74..c89a58cfc991 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -639,11 +639,9 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
int rc = 0;
s = kzalloc(sizeof(*s), GFP_KERNEL);
- if (!s) {
- printk(KERN_ERR "%s: Out of memory whilst trying to kmalloc "
- "[%zd] bytes of kernel memory\n", __func__, sizeof(*s));
+ if (!s)
return -ENOMEM;
- }
+
(*packet_size) = 0;
rc = ecryptfs_find_auth_tok_for_sig(
&auth_tok_key,
@@ -687,7 +685,7 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
* separator, and then the filename */
s->max_packet_size = (ECRYPTFS_TAG_70_MAX_METADATA_SIZE
+ s->block_aligned_filename_size);
- if (dest == NULL) {
+ if (!dest) {
(*packet_size) = s->max_packet_size;
goto out_unlock;
}
@@ -714,9 +712,6 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
s->block_aligned_filename = kzalloc(s->block_aligned_filename_size,
GFP_KERNEL);
if (!s->block_aligned_filename) {
- printk(KERN_ERR "%s: Out of kernel memory whilst attempting to "
- "kzalloc [%zd] bytes\n", __func__,
- s->block_aligned_filename_size);
rc = -ENOMEM;
goto out_unlock;
}
@@ -769,10 +764,6 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
s->hash_desc = kmalloc(sizeof(*s->hash_desc) +
crypto_shash_descsize(s->hash_tfm), GFP_KERNEL);
if (!s->hash_desc) {
- printk(KERN_ERR "%s: Out of kernel memory whilst attempting to "
- "kmalloc [%zd] bytes\n", __func__,
- sizeof(*s->hash_desc) +
- crypto_shash_descsize(s->hash_tfm));
rc = -ENOMEM;
goto out_release_free_unlock;
}
@@ -925,11 +916,9 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
(*filename_size) = 0;
(*filename) = NULL;
s = kzalloc(sizeof(*s), GFP_KERNEL);
- if (!s) {
- printk(KERN_ERR "%s: Out of memory whilst trying to kmalloc "
- "[%zd] bytes of kernel memory\n", __func__, sizeof(*s));
+ if (!s)
return -ENOMEM;
- }
+
if (max_packet_size < ECRYPTFS_TAG_70_MIN_METADATA_SIZE) {
printk(KERN_WARNING "%s: max_packet_size is [%zd]; it must be "
"at least [%d]\n", __func__, max_packet_size,
@@ -1015,9 +1004,6 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
s->decrypted_filename = kmalloc(s->block_aligned_filename_size,
GFP_KERNEL);
if (!s->decrypted_filename) {
- printk(KERN_ERR "%s: Out of memory whilst attempting to "
- "kmalloc [%zd] bytes\n", __func__,
- s->block_aligned_filename_size);
rc = -ENOMEM;
goto out_unlock;
}
@@ -1097,9 +1083,6 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
}
(*filename) = kmalloc(((*filename_size) + 1), GFP_KERNEL);
if (!(*filename)) {
- printk(KERN_ERR "%s: Out of memory whilst attempting to "
- "kmalloc [%zd] bytes\n", __func__,
- ((*filename_size) + 1));
rc = -ENOMEM;
goto out_free_unlock;
}
@@ -1333,7 +1316,7 @@ parse_tag_1_packet(struct ecryptfs_crypt_stat *crypt_stat,
if ((*new_auth_tok)->session_key.encrypted_key_size
> ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES) {
printk(KERN_WARNING "Tag 1 packet contains key larger "
- "than ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES");
+ "than ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES\n");
rc = -EINVAL;
goto out;
}
@@ -2525,11 +2508,9 @@ int ecryptfs_add_keysig(struct ecryptfs_crypt_stat *crypt_stat, char *sig)
struct ecryptfs_key_sig *new_key_sig;
new_key_sig = kmem_cache_alloc(ecryptfs_key_sig_cache, GFP_KERNEL);
- if (!new_key_sig) {
- printk(KERN_ERR
- "Error allocating from ecryptfs_key_sig_cache\n");
+ if (!new_key_sig)
return -ENOMEM;
- }
+
memcpy(new_key_sig->keysig, sig, ECRYPTFS_SIG_SIZE_HEX);
new_key_sig->keysig[ECRYPTFS_SIG_SIZE_HEX] = '\0';
/* Caller must hold keysig_list_mutex */
@@ -2545,16 +2526,12 @@ ecryptfs_add_global_auth_tok(struct ecryptfs_mount_crypt_stat *mount_crypt_stat,
char *sig, u32 global_auth_tok_flags)
{
struct ecryptfs_global_auth_tok *new_auth_tok;
- int rc = 0;
new_auth_tok = kmem_cache_zalloc(ecryptfs_global_auth_tok_cache,
GFP_KERNEL);
- if (!new_auth_tok) {
- rc = -ENOMEM;
- printk(KERN_ERR "Error allocating from "
- "ecryptfs_global_auth_tok_cache\n");
- goto out;
- }
+ if (!new_auth_tok)
+ return -ENOMEM;
+
memcpy(new_auth_tok->sig, sig, ECRYPTFS_SIG_SIZE_HEX);
new_auth_tok->flags = global_auth_tok_flags;
new_auth_tok->sig[ECRYPTFS_SIG_SIZE_HEX] = '\0';
@@ -2562,7 +2539,6 @@ ecryptfs_add_global_auth_tok(struct ecryptfs_mount_crypt_stat *mount_crypt_stat,
list_add(&new_auth_tok->mount_crypt_stat_list,
&mount_crypt_stat->global_auth_tok_list);
mutex_unlock(&mount_crypt_stat->global_auth_tok_list_mutex);
-out:
- return rc;
+ return 0;
}