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authorSimon Horman <horms@verge.net.au>2010-08-22 14:37:52 +0200
committerSimon Horman <horms@verge.net.au>2010-10-04 15:45:24 +0200
commit2fabf35bfcd89445c54cf1e6a5437dd3cf924a92 (patch)
treeac44075362b3b17d25f841c50622c0603fc2d3c8 /net/netfilter
parentIPVS: Allow null argument to ip_vs_scheduler_put() (diff)
downloadlinux-2fabf35bfcd89445c54cf1e6a5437dd3cf924a92.tar.xz
linux-2fabf35bfcd89445c54cf1e6a5437dd3cf924a92.zip
IPVS: ip_vs_{un,}bind_scheduler NULL arguments
In general NULL arguments aren't passed by the few callers that exist, so don't test for them. The exception is to make passing NULL to ip_vs_unbind_scheduler() a noop. Signed-off-by: Simon Horman <horms@verge.net.au> Acked-by: Julian Anastasov <ja@ssi.bg>
Diffstat (limited to 'net/netfilter')
-rw-r--r--net/netfilter/ipvs/ip_vs_ctl.c3
-rw-r--r--net/netfilter/ipvs/ip_vs_sched.c23
2 files changed, 4 insertions, 22 deletions
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index f7afcfe4dbc5..5f20caf47a1d 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1206,8 +1206,7 @@ ip_vs_add_service(struct ip_vs_service_user_kern *u,
out_err:
if (svc != NULL) {
- if (svc->scheduler)
- ip_vs_unbind_scheduler(svc);
+ ip_vs_unbind_scheduler(svc);
if (svc->inc) {
local_bh_disable();
ip_vs_app_inc_put(svc->inc);
diff --git a/net/netfilter/ipvs/ip_vs_sched.c b/net/netfilter/ipvs/ip_vs_sched.c
index 9f94e328d31e..076ebe00435d 100644
--- a/net/netfilter/ipvs/ip_vs_sched.c
+++ b/net/netfilter/ipvs/ip_vs_sched.c
@@ -46,15 +46,6 @@ int ip_vs_bind_scheduler(struct ip_vs_service *svc,
{
int ret;
- if (svc == NULL) {
- pr_err("%s(): svc arg NULL\n", __func__);
- return -EINVAL;
- }
- if (scheduler == NULL) {
- pr_err("%s(): scheduler arg NULL\n", __func__);
- return -EINVAL;
- }
-
svc->scheduler = scheduler;
if (scheduler->init_service) {
@@ -74,18 +65,10 @@ int ip_vs_bind_scheduler(struct ip_vs_service *svc,
*/
int ip_vs_unbind_scheduler(struct ip_vs_service *svc)
{
- struct ip_vs_scheduler *sched;
+ struct ip_vs_scheduler *sched = svc->scheduler;
- if (svc == NULL) {
- pr_err("%s(): svc arg NULL\n", __func__);
- return -EINVAL;
- }
-
- sched = svc->scheduler;
- if (sched == NULL) {
- pr_err("%s(): svc isn't bound\n", __func__);
- return -EINVAL;
- }
+ if (!sched)
+ return 0;
if (sched->done_service) {
if (sched->done_service(svc) != 0) {