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ecryptfs: Adjust four checks for null pointers 

The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written …

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
This commit is contained in:
Markus Elfring 2017-08-19 18:00:22 +02:00 committed by Tyler Hicks
parent a463ce5bbd
commit 5032f360dd
2 changed files with 4 additions and 4 deletions
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6
fs/ecryptfs/crypto.c
View File

@ -1649,7 +1649,7 @@ ecryptfs_add_new_key_tfm(struct ecryptfs_key_tfm **key_tfm, char *cipher_name,
BUG_ON(!mutex_is_locked(&key_tfm_list_mutex));
tmp_tfm = kmem_cache_alloc(ecryptfs_key_tfm_cache, GFP_KERNEL);
if (key_tfm != NULL)
if (key_tfm)
(*key_tfm) = tmp_tfm;
if (!tmp_tfm) {
rc = -ENOMEM;
@ -1668,7 +1668,7 @@ ecryptfs_add_new_key_tfm(struct ecryptfs_key_tfm **key_tfm, char *cipher_name,
"cipher with name = [%s]; rc = [%d]\n",
tmp_tfm->cipher_name, rc);
kmem_cache_free(ecryptfs_key_tfm_cache, tmp_tfm);
if (key_tfm != NULL)
if (key_tfm)
(*key_tfm) = NULL;
goto out;
}
@ -1859,7 +1859,7 @@ ecryptfs_decode_from_filename(unsigned char *dst, size_t *dst_size,
size_t src_byte_offset = 0;
size_t dst_byte_offset = 0;
if (dst == NULL) {
if (!dst) {
(*dst_size) = ecryptfs_max_decoded_size(src_size);
goto out;
}

2
fs/ecryptfs/keystore.c
View File

@ -685,7 +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;
}