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authorJesper Juhl <jesper.juhl@gmail.com>2005-11-08 09:41:34 -0800
committerDavid S. Miller <davem@davemloft.net>2005-11-08 09:41:34 -0800
commita51482bde22f99c63fbbb57d5d46cc666384e379 (patch)
tree5482ed1c0803edb2ffbd51035de921fb0f72d82b /net/ipv4
parentac7c98eca88a854755475fcfe1b2bf5f97f90d99 (diff)
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[NET]: kfree cleanup
From: Jesper Juhl <jesper.juhl@gmail.com> This is the net/ part of the big kfree cleanup patch. Remove pointless checks for NULL prior to calling kfree() in net/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnaldo Carvalho de Melo <acme@conectiva.com.br> Acked-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/af_inet.c3
-rw-r--r--net/ipv4/fib_frontend.c3
-rw-r--r--net/ipv4/ip_options.c3
-rw-r--r--net/ipv4/ip_output.c12
-rw-r--r--net/ipv4/ip_sockglue.c12
-rw-r--r--net/ipv4/ipvs/ip_vs_app.c6
-rw-r--r--net/ipv4/multipath_wrandom.c10
-rw-r--r--net/ipv4/netfilter/ip_nat_snmp_basic.c3
-rw-r--r--net/ipv4/tcp_ipv4.c3
9 files changed, 18 insertions, 37 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index a9d84f9..eaa150c 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -147,8 +147,7 @@ void inet_sock_destruct(struct sock *sk)
BUG_TRAP(!sk->sk_wmem_queued);
BUG_TRAP(!sk->sk_forward_alloc);
- if (inet->opt)
- kfree(inet->opt);
+ kfree(inet->opt);
dst_release(sk->sk_dst_cache);
sk_refcnt_debug_dec(sk);
}
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 990633c..2267c1f 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -266,8 +266,7 @@ int ip_rt_ioctl(unsigned int cmd, void __user *arg)
if (tb)
err = tb->tb_insert(tb, &req.rtm, &rta, &req.nlh, NULL);
}
- if (rta.rta_mx)
- kfree(rta.rta_mx);
+ kfree(rta.rta_mx);
}
rtnl_unlock();
return err;
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index bce4e87..dbe12da 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -510,8 +510,7 @@ static int ip_options_get_finish(struct ip_options **optp,
kfree(opt);
return -EINVAL;
}
- if (*optp)
- kfree(*optp);
+ kfree(*optp);
*optp = opt;
return 0;
}
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 1775823..df7f20d 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1262,10 +1262,8 @@ int ip_push_pending_frames(struct sock *sk)
out:
inet->cork.flags &= ~IPCORK_OPT;
- if (inet->cork.opt) {
- kfree(inet->cork.opt);
- inet->cork.opt = NULL;
- }
+ kfree(inet->cork.opt);
+ inet->cork.opt = NULL;
if (inet->cork.rt) {
ip_rt_put(inet->cork.rt);
inet->cork.rt = NULL;
@@ -1289,10 +1287,8 @@ void ip_flush_pending_frames(struct sock *sk)
kfree_skb(skb);
inet->cork.flags &= ~IPCORK_OPT;
- if (inet->cork.opt) {
- kfree(inet->cork.opt);
- inet->cork.opt = NULL;
- }
+ kfree(inet->cork.opt);
+ inet->cork.opt = NULL;
if (inet->cork.rt) {
ip_rt_put(inet->cork.rt);
inet->cork.rt = NULL;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 2f0b47d..4f2d872 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -202,8 +202,7 @@ int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct s
if (ra->sk == sk) {
if (on) {
write_unlock_bh(&ip_ra_lock);
- if (new_ra)
- kfree(new_ra);
+ kfree(new_ra);
return -EADDRINUSE;
}
*rap = ra->next;
@@ -446,8 +445,7 @@ int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
#endif
}
opt = xchg(&inet->opt, opt);
- if (opt)
- kfree(opt);
+ kfree(opt);
break;
}
case IP_PKTINFO:
@@ -828,10 +826,8 @@ int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
err = ip_mc_msfilter(sk, msf, ifindex);
mc_msf_out:
- if (msf)
- kfree(msf);
- if (gsf)
- kfree(gsf);
+ kfree(msf);
+ kfree(gsf);
break;
}
case IP_ROUTER_ALERT:
diff --git a/net/ipv4/ipvs/ip_vs_app.c b/net/ipv4/ipvs/ip_vs_app.c
index fc6f95a..d7eb680 100644
--- a/net/ipv4/ipvs/ip_vs_app.c
+++ b/net/ipv4/ipvs/ip_vs_app.c
@@ -110,8 +110,7 @@ ip_vs_app_inc_new(struct ip_vs_app *app, __u16 proto, __u16 port)
return 0;
out:
- if (inc->timeout_table)
- kfree(inc->timeout_table);
+ kfree(inc->timeout_table);
kfree(inc);
return ret;
}
@@ -136,8 +135,7 @@ ip_vs_app_inc_release(struct ip_vs_app *inc)
list_del(&inc->a_list);
- if (inc->timeout_table != NULL)
- kfree(inc->timeout_table);
+ kfree(inc->timeout_table);
kfree(inc);
}
diff --git a/net/ipv4/multipath_wrandom.c b/net/ipv4/multipath_wrandom.c
index bd7d75b..d34a9fa 100644
--- a/net/ipv4/multipath_wrandom.c
+++ b/net/ipv4/multipath_wrandom.c
@@ -207,16 +207,12 @@ static void wrandom_select_route(const struct flowi *flp,
decision = mpc->rt;
last_power = mpc->power;
- if (last_mpc)
- kfree(last_mpc);
-
+ kfree(last_mpc);
last_mpc = mpc;
}
- if (last_mpc) {
- /* concurrent __multipath_flush may lead to !last_mpc */
- kfree(last_mpc);
- }
+ /* concurrent __multipath_flush may lead to !last_mpc */
+ kfree(last_mpc);
decision->u.dst.__use++;
*rp = decision;
diff --git a/net/ipv4/netfilter/ip_nat_snmp_basic.c b/net/ipv4/netfilter/ip_nat_snmp_basic.c
index 93b2c51..8acb7ed 100644
--- a/net/ipv4/netfilter/ip_nat_snmp_basic.c
+++ b/net/ipv4/netfilter/ip_nat_snmp_basic.c
@@ -1161,8 +1161,7 @@ static int snmp_parse_mangle(unsigned char *msg,
if (!snmp_object_decode(&ctx, obj)) {
if (*obj) {
- if ((*obj)->id)
- kfree((*obj)->id);
+ kfree((*obj)->id);
kfree(*obj);
}
kfree(obj);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 49d67cd..634dabb 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -823,8 +823,7 @@ out:
*/
static void tcp_v4_reqsk_destructor(struct request_sock *req)
{
- if (inet_rsk(req)->opt)
- kfree(inet_rsk(req)->opt);
+ kfree(inet_rsk(req)->opt);
}
static inline void syn_flood_warning(struct sk_buff *skb)