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| author | Arnd Bergmann <arnd@arndb.de> | 2012-10-09 13:04:34 +0900 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2012-10-09 13:04:34 +0900 |
| commit | b61a602ee6730150f4d0df730d9312ac4d820ceb (patch) | |
| tree | a7aa7866c65cf8e9ebf26113168975f00e1d82cb | |
| parent | 6825a26c2dc21eb4f8df9c06d3786ddec97cf53b (diff) | |
| download | linux-b61a602ee6730150f4d0df730d9312ac4d820ceb.tar.gz linux-b61a602ee6730150f4d0df730d9312ac4d820ceb.tar.bz2 linux-b61a602ee6730150f4d0df730d9312ac4d820ceb.zip | |
ipvs: initialize returned data in do_ip_vs_get_ctl
As reported by a gcc warning, the do_ip_vs_get_ctl does not initalize
all the members of the ip_vs_timeout_user structure it returns if
at least one of the TCP or UDP protocols is disabled for ipvs.
This makes sure that the data is always initialized, before it is
returned as a response to IPVS_CMD_GET_CONFIG or printed as a
debug message in IPVS_CMD_SET_CONFIG.
Without this patch, building ARM ixp4xx_defconfig results in:
net/netfilter/ipvs/ip_vs_ctl.c: In function 'ip_vs_genl_set_cmd':
net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.udp_timeout' may be used uninitialized in this function [-Wuninitialized]
net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.udp_timeout' was declared here
net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.tcp_fin_timeout' may be used uninitialized in this function [-Wuninitialized]
net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.tcp_fin_timeout' was declared here
net/netfilter/ipvs/ip_vs_ctl.c:2238:47: warning: 't.tcp_timeout' may be used uninitialized in this function [-Wuninitialized]
net/netfilter/ipvs/ip_vs_ctl.c:3322:28: note: 't.tcp_timeout' was declared here
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_ctl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 7e7198b51c06..c4ee43710aab 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -2589,6 +2589,8 @@ __ip_vs_get_timeouts(struct net *net, struct ip_vs_timeout_user *u) struct ip_vs_proto_data *pd; #endif + memset(u, 0, sizeof (*u)); + #ifdef CONFIG_IP_VS_PROTO_TCP pd = ip_vs_proto_data_get(net, IPPROTO_TCP); u->tcp_timeout = pd->timeout_table[IP_VS_TCP_S_ESTABLISHED] / HZ; @@ -2766,7 +2768,6 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len) { struct ip_vs_timeout_user t; - memset(&t, 0, sizeof(t)); __ip_vs_get_timeouts(net, &t); if (copy_to_user(user, &t, sizeof(t)) != 0) ret = -EFAULT; |