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-rw-r--r--net/core/sock.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/net/core/sock.c b/net/core/sock.c
index 13cc3be4f05..6465b0e4c8c 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1488,7 +1488,7 @@ int proto_register(struct proto *prot, int alloc_slab)
}
}
- if (prot->twsk_obj_size) {
+ if (prot->twsk_prot != NULL) {
static const char mask[] = "tw_sock_%s";
timewait_sock_slab_name = kmalloc(strlen(prot->name) + sizeof(mask) - 1, GFP_KERNEL);
@@ -1497,11 +1497,12 @@ int proto_register(struct proto *prot, int alloc_slab)
goto out_free_request_sock_slab;
sprintf(timewait_sock_slab_name, mask, prot->name);
- prot->twsk_slab = kmem_cache_create(timewait_sock_slab_name,
- prot->twsk_obj_size,
- 0, SLAB_HWCACHE_ALIGN,
- NULL, NULL);
- if (prot->twsk_slab == NULL)
+ prot->twsk_prot->twsk_slab =
+ kmem_cache_create(timewait_sock_slab_name,
+ prot->twsk_prot->twsk_obj_size,
+ 0, SLAB_HWCACHE_ALIGN,
+ NULL, NULL);
+ if (prot->twsk_prot->twsk_slab == NULL)
goto out_free_timewait_sock_slab_name;
}
}
@@ -1548,12 +1549,12 @@ void proto_unregister(struct proto *prot)
prot->rsk_prot->slab = NULL;
}
- if (prot->twsk_slab != NULL) {
- const char *name = kmem_cache_name(prot->twsk_slab);
+ if (prot->twsk_prot != NULL && prot->twsk_prot->twsk_slab != NULL) {
+ const char *name = kmem_cache_name(prot->twsk_prot->twsk_slab);
- kmem_cache_destroy(prot->twsk_slab);
+ kmem_cache_destroy(prot->twsk_prot->twsk_slab);
kfree(name);
- prot->twsk_slab = NULL;
+ prot->twsk_prot->twsk_slab = NULL;
}
}