From 9e691ed68d94ab3047e028736641445b4cf74d67 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Wed, 17 Sep 2008 10:10:41 +1000 Subject: ipvs: only unlock in ip_vs_edit_service() if already locked Jumping to out unlocks __ip_vs_svc_lock, but that lock is not taken until after code that may jump to out. This problem was detected by sparse. make C=1 CHECK net/ipv4/ipvs/ip_vs_ctl.c net/ipv4/ipvs/ip_vs_ctl.c:1332:2: warning: context imbalance in 'ip_vs_edit_service' - unexpected unlock Acked-by: Sven Wegener Acked-by: Julius Volz Signed-off-by: Simon Horman --- net/ipv4/ipvs/ip_vs_ctl.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'net/ipv4') diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c index 993a83fb0d5..60ca24b9ec0 100644 --- a/net/ipv4/ipvs/ip_vs_ctl.c +++ b/net/ipv4/ipvs/ip_vs_ctl.c @@ -1305,7 +1305,7 @@ ip_vs_edit_service(struct ip_vs_service *svc, struct ip_vs_service_user_kern *u) */ if ((ret = ip_vs_unbind_scheduler(svc))) { old_sched = sched; - goto out; + goto out_unlock; } /* @@ -1324,12 +1324,13 @@ ip_vs_edit_service(struct ip_vs_service *svc, struct ip_vs_service_user_kern *u) */ ip_vs_bind_scheduler(svc, old_sched); old_sched = sched; - goto out; + goto out_unlock; } } - out: + out_unlock: write_unlock_bh(&__ip_vs_svc_lock); + out: if (old_sched) ip_vs_scheduler_put(old_sched); -- cgit v1.2.3