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dccp: drop null test before destroy functions 

Remove unneeded NULL test.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x;
@@

-if (x != NULL)
  \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);

@@
expression x;
@@

-if (x != NULL) {
  \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
  x = NULL;
-}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julia Lawall 2015-09-13 14:15:27 +02:00 committed by David S. Miller
parent adf78edac0
commit 20471ed4d4
2 changed files with 5 additions and 10 deletions
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12
net/dccp/ackvec.c
View File

@ -398,12 +398,8 @@ int __init dccp_ackvec_init(void)
void dccp_ackvec_exit(void)
{
if (dccp_ackvec_slab != NULL) {
kmem_cache_destroy(dccp_ackvec_slab);
dccp_ackvec_slab = NULL;
}
if (dccp_ackvec_record_slab != NULL) {
kmem_cache_destroy(dccp_ackvec_record_slab);
dccp_ackvec_record_slab = NULL;
}
kmem_cache_destroy(dccp_ackvec_slab);
dccp_ackvec_slab = NULL;
kmem_cache_destroy(dccp_ackvec_record_slab);
dccp_ackvec_record_slab = NULL;
}

3
net/dccp/ccid.c
View File

@ -95,8 +95,7 @@ static struct kmem_cache *ccid_kmem_cache_create(int obj_size, char *slab_name_f
static void ccid_kmem_cache_destroy(struct kmem_cache *slab)
{
if (slab != NULL)
kmem_cache_destroy(slab);
kmem_cache_destroy(slab);
}
static int __init ccid_activate(struct ccid_operations *ccid_ops)