[NETLINK]: kzalloc() conversion

nl_pid_hash_alloc() is renamed to nl_pid_hash_zalloc().
It is now returning zeroed memory to its callers.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 7 deletions

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 2e02b19e4552..dbd7cad1c9a9 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -237,13 +237,14 @@ found:
         return sk;
 }
 
-static inline struct hlist_head *nl_pid_hash_alloc(size_t size)
+static inline struct hlist_head *nl_pid_hash_zalloc(size_t size)
 {
         if (size <= PAGE_SIZE)
-                return kmalloc(size, GFP_ATOMIC);
+                return kzalloc(size, GFP_ATOMIC);
         else
                 return (struct hlist_head *)
-                        __get_free_pages(GFP_ATOMIC, get_order(size));
+                        __get_free_pages(GFP_ATOMIC | __GFP_ZERO,
+                                         get_order(size));
 }
 
 static inline void nl_pid_hash_free(struct hlist_head *table, size_t size)
@@ -272,11 +273,10 @@ static int nl_pid_hash_rehash(struct nl_pid_hash *hash, int grow)
                 size *= 2;
         }
 
-        table = nl_pid_hash_alloc(size);
+        table = nl_pid_hash_zalloc(size);
         if (!table)
                 return 0;
 
-        memset(table, 0, size);
         otable = hash->table;
         hash->table = table;
         hash->mask = mask;
@@ -1919,7 +1919,7 @@ static int __init netlink_proto_init(void)
         for (i = 0; i < MAX_LINKS; i++) {
                 struct nl_pid_hash *hash = &nl_table[i].hash;
 
-                hash->table = nl_pid_hash_alloc(1 * sizeof(*hash->table));
+                hash->table = nl_pid_hash_zalloc(1 * sizeof(*hash->table));
                 if (!hash->table) {
                         while (i-- > 0)
                                 nl_pid_hash_free(nl_table[i].hash.table,
@@ -1927,7 +1927,6 @@ static int __init netlink_proto_init(void)
                         kfree(nl_table);
                         goto panic;
                 }
-                memset(hash->table, 0, 1 * sizeof(*hash->table));
                 hash->max_shift = order;
                 hash->shift = 0;
                 hash->mask = 0;