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authorAntonio Quartulli <antonio@meshcoding.com>2014-05-24 06:43:47 +0200
committerAntonio Quartulli <antonio@meshcoding.com>2014-08-04 16:02:10 +0200
commit0185dda640a704ce41ca1489c6775451c5ff3dcf (patch)
treefd50f60be3bc3c506618f13c14d4a1794414ff19 /net
parente6b92c25d20c64c271ef429bba8febeefb848b5b (diff)
downloadlinux-0185dda640a704ce41ca1489c6775451c5ff3dcf.tar.gz
batman-adv: prefer kmalloc_array to kmalloc when possible
Reported by checkpatch with the following warning: WARNING: Prefer kmalloc_array over kmalloc with multiply Signed-off-by: Antonio Quartulli <antonio@meshcoding.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Diffstat (limited to 'net')
-rw-r--r--net/batman-adv/bat_iv_ogm.c13
-rw-r--r--net/batman-adv/distributed-arp-table.c3
-rw-r--r--net/batman-adv/hash.c6
3 files changed, 12 insertions, 10 deletions
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index f04224c32005..1e8053976e83 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -108,14 +108,15 @@ static int batadv_iv_ogm_orig_add_if(struct batadv_orig_node *orig_node,
int max_if_num)
{
void *data_ptr;
- size_t data_size, old_size;
+ size_t old_size;
int ret = -ENOMEM;
spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
- data_size = max_if_num * sizeof(unsigned long) * BATADV_NUM_WORDS;
old_size = (max_if_num - 1) * sizeof(unsigned long) * BATADV_NUM_WORDS;
- data_ptr = kmalloc(data_size, GFP_ATOMIC);
+ data_ptr = kmalloc_array(max_if_num,
+ BATADV_NUM_WORDS * sizeof(unsigned long),
+ GFP_ATOMIC);
if (!data_ptr)
goto unlock;
@@ -123,7 +124,7 @@ static int batadv_iv_ogm_orig_add_if(struct batadv_orig_node *orig_node,
kfree(orig_node->bat_iv.bcast_own);
orig_node->bat_iv.bcast_own = data_ptr;
- data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
+ data_ptr = kmalloc_array(max_if_num, sizeof(uint8_t), GFP_ATOMIC);
if (!data_ptr) {
kfree(orig_node->bat_iv.bcast_own);
goto unlock;
@@ -164,7 +165,7 @@ static int batadv_iv_ogm_orig_del_if(struct batadv_orig_node *orig_node,
goto free_bcast_own;
chunk_size = sizeof(unsigned long) * BATADV_NUM_WORDS;
- data_ptr = kmalloc(max_if_num * chunk_size, GFP_ATOMIC);
+ data_ptr = kmalloc_array(max_if_num, chunk_size, GFP_ATOMIC);
if (!data_ptr)
goto unlock;
@@ -183,7 +184,7 @@ free_bcast_own:
if (max_if_num == 0)
goto free_own_sum;
- data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
+ data_ptr = kmalloc_array(max_if_num, sizeof(uint8_t), GFP_ATOMIC);
if (!data_ptr) {
kfree(orig_node->bat_iv.bcast_own);
goto unlock;
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index f2c066b21716..b5981113c9a7 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -537,7 +537,8 @@ batadv_dat_select_candidates(struct batadv_priv *bat_priv, __be32 ip_dst)
if (!bat_priv->orig_hash)
return NULL;
- res = kmalloc(BATADV_DAT_CANDIDATES_NUM * sizeof(*res), GFP_ATOMIC);
+ res = kmalloc_array(BATADV_DAT_CANDIDATES_NUM, sizeof(*res),
+ GFP_ATOMIC);
if (!res)
return NULL;
diff --git a/net/batman-adv/hash.c b/net/batman-adv/hash.c
index 63bdf7e94f1e..7c1c63080e20 100644
--- a/net/batman-adv/hash.c
+++ b/net/batman-adv/hash.c
@@ -46,12 +46,12 @@ struct batadv_hashtable *batadv_hash_new(uint32_t size)
if (!hash)
return NULL;
- hash->table = kmalloc(sizeof(*hash->table) * size, GFP_ATOMIC);
+ hash->table = kmalloc_array(size, sizeof(*hash->table), GFP_ATOMIC);
if (!hash->table)
goto free_hash;
- hash->list_locks = kmalloc(sizeof(*hash->list_locks) * size,
- GFP_ATOMIC);
+ hash->list_locks = kmalloc_array(size, sizeof(*hash->list_locks),
+ GFP_ATOMIC);
if (!hash->list_locks)
goto free_table;