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net: core: drop null test before destroy functions

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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);
  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 14:15:18 +02:00 committed by David S. Miller
parent 58d29e3ce9
commit adf78edac0
1 changed files with 4 additions and 8 deletions
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12
net/core/sock.c
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@ -2740,10 +2740,8 @@ static void req_prot_cleanup(struct request_sock_ops *rsk_prot)
return;
kfree(rsk_prot->slab_name);
rsk_prot->slab_name = NULL;
if (rsk_prot->slab) {
kmem_cache_destroy(rsk_prot->slab);
rsk_prot->slab = NULL;
}
kmem_cache_destroy(rsk_prot->slab);
rsk_prot->slab = NULL;
}
static int req_prot_init(const struct proto *prot)
@ -2828,10 +2826,8 @@ void proto_unregister(struct proto *prot)
list_del(&prot->node);
mutex_unlock(&proto_list_mutex);
if (prot->slab != NULL) {
kmem_cache_destroy(prot->slab);
prot->slab = NULL;
}
kmem_cache_destroy(prot->slab);
prot->slab = NULL;
req_prot_cleanup(prot->rsk_prot);