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[NET]: kfree cleanup

Browse source 
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>
This commit is contained in:
Jesper Juhl 2005-11-08 09:41:34 -08:00 committed by David S. Miller
parent ac7c98eca8
commit a51482bde2
47 changed files with 99 additions and 191 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
net/802/p8023.c
View file

@ -54,8 +54,7 @@ struct datalink_proto *make_8023_client(void)
*/
void destroy_8023_client(struct datalink_proto *dl)
{
if (dl)
kfree(dl);
kfree(dl);
}
EXPORT_SYMBOL(destroy_8023_client);

6
net/ax25/af_ax25.c
View file

@ -1138,10 +1138,8 @@ static int ax25_connect(struct socket *sock, struct sockaddr *uaddr,
sk->sk_state = TCP_CLOSE;
sock->state = SS_UNCONNECTED;
if (ax25->digipeat != NULL) {
kfree(ax25->digipeat);
ax25->digipeat = NULL;
}
kfree(ax25->digipeat);
ax25->digipeat = NULL;
/*
* Handle digi-peaters to be used.

6
net/ax25/ax25_in.c
View file

@ -401,10 +401,8 @@ static int ax25_rcv(struct sk_buff *skb, struct net_device *dev,
}
if (dp.ndigi == 0) {
if (ax25->digipeat != NULL) {
kfree(ax25->digipeat);
ax25->digipeat = NULL;
}
kfree(ax25->digipeat);
ax25->digipeat = NULL;
} else {
/* Reverse the source SABM's path */
memcpy(ax25->digipeat, &reverse_dp, sizeof(ax25_digi));

19
net/ax25/ax25_route.c
View file

@ -54,15 +54,13 @@ void ax25_rt_device_down(struct net_device *dev)
if (s->dev == dev) {
if (ax25_route_list == s) {
ax25_route_list = s->next;
if (s->digipeat != NULL)
kfree(s->digipeat);
kfree(s->digipeat);
kfree(s);
} else {
for (t = ax25_route_list; t != NULL; t = t->next) {
if (t->next == s) {
t->next = s->next;
if (s->digipeat != NULL)
kfree(s->digipeat);
kfree(s->digipeat);
kfree(s);
break;
}
@ -90,10 +88,8 @@ static int ax25_rt_add(struct ax25_routes_struct *route)
while (ax25_rt != NULL) {
if (ax25cmp(&ax25_rt->callsign, &route->dest_addr) == 0 &&
ax25_rt->dev == ax25_dev->dev) {
if (ax25_rt->digipeat != NULL) {
kfree(ax25_rt->digipeat);
ax25_rt->digipeat = NULL;
}
kfree(ax25_rt->digipeat);
ax25_rt->digipeat = NULL;
if (route->digi_count != 0) {
if ((ax25_rt->digipeat = kmalloc(sizeof(ax25_digi), GFP_ATOMIC)) == NULL) {
write_unlock(&ax25_route_lock);
@ -145,8 +141,7 @@ static int ax25_rt_add(struct ax25_routes_struct *route)
static void ax25_rt_destroy(ax25_route *ax25_rt)
{
if (atomic_read(&ax25_rt->ref) == 0) {
if (ax25_rt->digipeat != NULL)
kfree(ax25_rt->digipeat);
kfree(ax25_rt->digipeat);
kfree(ax25_rt);
return;
}
@ -530,9 +525,7 @@ void __exit ax25_rt_free(void)
s = ax25_rt;
ax25_rt = ax25_rt->next;
if (s->digipeat != NULL)
kfree(s->digipeat);
kfree(s->digipeat);
kfree(s);
}
write_unlock(&ax25_route_lock);

4
net/bluetooth/hidp/core.c
View file

@ -660,9 +660,7 @@ unlink:
failed:
up_write(&hidp_session_sem);
if (session->input)
kfree(session->input);
kfree(session->input);
kfree(session);
return err;
}

3
net/core/dev_mcast.c
View file

@ -194,8 +194,7 @@ int dev_mc_add(struct net_device *dev, void *addr, int alen, int glbl)
done:
spin_unlock_bh(&dev->xmit_lock);
if (dmi1)
kfree(dmi1);
kfree(dmi1);
return err;
}

3
net/core/sock.c
View file

@ -1242,8 +1242,7 @@ static void sock_def_write_space(struct sock *sk)
static void sock_def_destruct(struct sock *sk)
{
if (sk->sk_protinfo)
kfree(sk->sk_protinfo);
kfree(sk->sk_protinfo);
}
void sk_send_sigurg(struct sock *sk)

6
net/dccp/ipv4.c
View file

@ -1263,10 +1263,8 @@ static int dccp_v4_destroy_sock(struct sock *sk)
if (inet_csk(sk)->icsk_bind_hash != NULL)
inet_put_port(&dccp_hashinfo, sk);
if (dp->dccps_service_list != NULL) {
kfree(dp->dccps_service_list);
dp->dccps_service_list = NULL;
}
kfree(dp->dccps_service_list);
dp->dccps_service_list = NULL;
ccid_hc_rx_exit(dp->dccps_hc_rx_ccid, sk);
ccid_hc_tx_exit(dp->dccps_hc_tx_ccid, sk);

3
net/dccp/proto.c
View file

@ -238,8 +238,7 @@ static int dccp_setsockopt_service(struct sock *sk, const u32 service,
lock_sock(sk);
dp->dccps_service = service;
if (dp->dccps_service_list != NULL)
kfree(dp->dccps_service_list);
kfree(dp->dccps_service_list);
dp->dccps_service_list = sl;
release_sock(sk);

14
net/decnet/dn_table.c
View file

@ -784,16 +784,14 @@ struct dn_fib_table *dn_fib_get_table(int n, int create)
static void dn_fib_del_tree(int n)
{
struct dn_fib_table *t;
struct dn_fib_table *t;
write_lock(&dn_fib_tables_lock);
t = dn_fib_tables[n];
dn_fib_tables[n] = NULL;
write_unlock(&dn_fib_tables_lock);
write_lock(&dn_fib_tables_lock);
t = dn_fib_tables[n];
dn_fib_tables[n] = NULL;
write_unlock(&dn_fib_tables_lock);
if (t) {
kfree(t);
}
kfree(t);
}
struct dn_fib_table *dn_fib_empty_table(void)

3
net/ethernet/pe2.c
View file

@ -32,8 +32,7 @@ struct datalink_proto *make_EII_client(void)
void destroy_EII_client(struct datalink_proto *dl)
{
if (dl)
kfree(dl);
kfree(dl);
}
EXPORT_SYMBOL(destroy_EII_client);

3
net/ipv4/af_inet.c
View file

@ -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);
}

3
net/ipv4/fib_frontend.c
View file

@ -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;

3
net/ipv4/ip_options.c
View file

@ -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;
}

12
net/ipv4/ip_output.c
View file

@ -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;

12
net/ipv4/ip_sockglue.c
View file

@ -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:

6
net/ipv4/ipvs/ip_vs_app.c
View file

@ -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);
}

10
net/ipv4/multipath_wrandom.c
View file

@ -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;

3
net/ipv4/netfilter/ip_nat_snmp_basic.c
View file

@ -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);

3
net/ipv4/tcp_ipv4.c
View file

@ -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)

3
net/ipv6/addrconf.c
View file

@ -3090,8 +3090,7 @@ static int inet6_fill_ifinfo(struct sk_buff *skb, struct inet6_dev *idev,
nlmsg_failure:
rtattr_failure:
if (array)
kfree(array);
kfree(array);
skb_trim(skb, b - skb->data);
return -1;
}

15
net/ipv6/ip6_output.c
View file

@ -587,8 +587,7 @@ static int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
skb->next = NULL;
}
if (tmp_hdr)
kfree(tmp_hdr);
kfree(tmp_hdr);
if (err == 0) {
IP6_INC_STATS(IPSTATS_MIB_FRAGOKS);
@ -1186,10 +1185,8 @@ int ip6_push_pending_frames(struct sock *sk)
out:
inet->cork.flags &= ~IPCORK_OPT;
if (np->cork.opt) {
kfree(np->cork.opt);
np->cork.opt = NULL;
}
kfree(np->cork.opt);
np->cork.opt = NULL;
if (np->cork.rt) {
dst_release(&np->cork.rt->u.dst);
np->cork.rt = NULL;
@ -1214,10 +1211,8 @@ void ip6_flush_pending_frames(struct sock *sk)
inet->cork.flags &= ~IPCORK_OPT;
if (np->cork.opt) {
kfree(np->cork.opt);
np->cork.opt = NULL;
}
kfree(np->cork.opt);
np->cork.opt = NULL;
if (np->cork.rt) {
dst_release(&np->cork.rt->u.dst);
np->cork.rt = NULL;

6
net/ipv6/ip6_tunnel.c
View file

@ -756,8 +756,7 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
}
ip6_tnl_dst_store(t, dst);
if (opt)
kfree(opt);
kfree(opt);
t->recursion--;
return 0;
@ -766,8 +765,7 @@ tx_err_link_failure:
dst_link_failure(skb);
tx_err_dst_release:
dst_release(dst);
if (opt)
kfree(opt);
kfree(opt);
tx_err:
stats->tx_errors++;
stats->tx_dropped++;

3
net/ipv6/ipcomp6.c
View file

@ -130,8 +130,7 @@ static int ipcomp6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, s
out_put_cpu:
put_cpu();
out:
if (tmp_hdr)
kfree(tmp_hdr);
kfree(tmp_hdr);
if (err)
goto error_out;
return nexthdr;

3
net/ipv6/ipv6_sockglue.c
View file

@ -80,8 +80,7 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
if (ra->sk == sk) {
if (sel>=0) {
write_unlock_bh(&ip6_ra_lock);
if (new_ra)
kfree(new_ra);
kfree(new_ra);
return -EADDRINUSE;
}

3
net/irda/discovery.c
View file

@ -194,8 +194,7 @@ void irlmp_expire_discoveries(hashbin_t *log, __u32 saddr, int force)
/* Remove it from the log */
curr = hashbin_remove_this(log, (irda_queue_t *) curr);
if (curr)
kfree(curr);
kfree(curr);
}
}

16
net/irda/irias_object.c
View file

@ -122,8 +122,7 @@ static void __irias_delete_attrib(struct ias_attrib *attrib)
IRDA_ASSERT(attrib != NULL, return;);
IRDA_ASSERT(attrib->magic == IAS_ATTRIB_MAGIC, return;);
if (attrib->name)
kfree(attrib->name);
kfree(attrib->name);
irias_delete_value(attrib->value);
attrib->magic = ~IAS_ATTRIB_MAGIC;
@ -136,8 +135,7 @@ void __irias_delete_object(struct ias_object *obj)
IRDA_ASSERT(obj != NULL, return;);
IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return;);
if (obj->name)
kfree(obj->name);
kfree(obj->name);
hashbin_delete(obj->attribs, (FREE_FUNC) __irias_delete_attrib);
@ -562,14 +560,12 @@ void irias_delete_value(struct ias_value *value)
/* No need to deallocate */
break;
case IAS_STRING:
/* If string, deallocate string */
if (value->t.string != NULL)
kfree(value->t.string);
/* Deallocate string */
kfree(value->t.string);
break;
case IAS_OCT_SEQ:
/* If byte stream, deallocate byte stream */
if (value->t.oct_seq != NULL)
kfree(value->t.oct_seq);
/* Deallocate byte stream */
kfree(value->t.oct_seq);
break;
default:
IRDA_DEBUG(0, "%s(), Unknown value type!\n", __FUNCTION__);

6
net/rose/rose_route.c
View file

@ -240,8 +240,7 @@ static void rose_remove_neigh(struct rose_neigh *rose_neigh)
if ((s = rose_neigh_list) == rose_neigh) {
rose_neigh_list = rose_neigh->next;
spin_unlock_bh(&rose_neigh_list_lock);
if (rose_neigh->digipeat != NULL)
kfree(rose_neigh->digipeat);
kfree(rose_neigh->digipeat);
kfree(rose_neigh);
return;
}
@ -250,8 +249,7 @@ static void rose_remove_neigh(struct rose_neigh *rose_neigh)
if (s->next == rose_neigh) {
s->next = rose_neigh->next;
spin_unlock_bh(&rose_neigh_list_lock);
if (rose_neigh->digipeat != NULL)
kfree(rose_neigh->digipeat);
kfree(rose_neigh->digipeat);
kfree(rose_neigh);
return;
}

3
net/sched/cls_fw.c
View file

@ -298,8 +298,7 @@ static int fw_change(struct tcf_proto *tp, unsigned long base,
return 0;
errout:
if (f)
kfree(f);
kfree(f);
return err;
}

3
net/sched/cls_route.c
View file

@ -525,8 +525,7 @@ reinsert:
return 0;
errout:
if (f)
kfree(f);
kfree(f);
return err;
}

3
net/sched/cls_rsvp.h
View file

@ -555,8 +555,7 @@ insert:
goto insert;
errout:
if (f)
kfree(f);
kfree(f);
errout2:
tcf_exts_destroy(tp, &e);
return err;

9
net/sched/cls_tcindex.c
View file

@ -194,8 +194,7 @@ found:
}
tcf_unbind_filter(tp, &r->res);
tcf_exts_destroy(tp, &r->exts);
if (f)
kfree(f);
kfree(f);
return 0;
}
@ -442,10 +441,8 @@ static void tcindex_destroy(struct tcf_proto *tp)
walker.skip = 0;
walker.fn = &tcindex_destroy_element;
tcindex_walk(tp,&walker);
if (p->perfect)
kfree(p->perfect);
if (p->h)
kfree(p->h);
kfree(p->perfect);
kfree(p->h);
kfree(p);
tp->root = NULL;
}

4
net/sched/cls_u32.c
View file

@ -347,7 +347,7 @@ static int u32_destroy_key(struct tcf_proto *tp, struct tc_u_knode *n)
if (n->ht_down)
n->ht_down->refcnt--;
#ifdef CONFIG_CLS_U32_PERF
if (n && (NULL != n->pf))
if (n)
kfree(n->pf);
#endif
kfree(n);
@ -680,7 +680,7 @@ static int u32_change(struct tcf_proto *tp, unsigned long base, u32 handle,
return 0;
}
#ifdef CONFIG_CLS_U32_PERF
if (n && (NULL != n->pf))
if (n)
kfree(n->pf);
#endif
kfree(n);

3
net/sched/em_meta.c
View file

@ -561,8 +561,7 @@ static int meta_var_change(struct meta_value *dst, struct rtattr *rta)
static void meta_var_destroy(struct meta_value *v)
{
if (v->val)
kfree((void *) v->val);
kfree((void *) v->val);
}
static void meta_var_apply_extras(struct meta_value *v,

4
net/sctp/associola.c
View file

@ -344,9 +344,7 @@ void sctp_association_free(struct sctp_association *asoc)
}
/* Free peer's cached cookie. */
if (asoc->peer.cookie) {
kfree(asoc->peer.cookie);
}
kfree(asoc->peer.cookie);
/* Release the transport structures. */
list_for_each_safe(pos, temp, &asoc->peer.transport_addr_list) {

6
net/sctp/sm_make_chunk.c
View file

@ -254,8 +254,7 @@ struct sctp_chunk *sctp_make_init(const struct sctp_association *asoc,
aiparam.adaption_ind = htonl(sp->adaption_ind);
sctp_addto_chunk(retval, sizeof(aiparam), &aiparam);
nodata:
if (addrs.v)
kfree(addrs.v);
kfree(addrs.v);
return retval;
}
@ -347,8 +346,7 @@ struct sctp_chunk *sctp_make_init_ack(const struct sctp_association *asoc,
nomem_chunk:
kfree(cookie);
nomem_cookie:
if (addrs.v)
kfree(addrs.v);
kfree(addrs.v);
return retval;
}

2
net/sunrpc/auth_gss/gss_krb5_seal.c
View file

@ -143,6 +143,6 @@ gss_get_mic_kerberos(struct gss_ctx *gss_ctx, struct xdr_buf *text,
return ((ctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE);
out_err:
if (md5cksum.data) kfree(md5cksum.data);
kfree(md5cksum.data);
return GSS_S_FAILURE;
}

2
net/sunrpc/auth_gss/gss_krb5_unseal.c
View file

@ -176,6 +176,6 @@ gss_verify_mic_kerberos(struct gss_ctx *gss_ctx,
ret = GSS_S_COMPLETE;
out:
if (md5cksum.data) kfree(md5cksum.data);
kfree(md5cksum.data);
return ret;
}

3
net/sunrpc/auth_gss/gss_mech_switch.c
View file

@ -60,8 +60,7 @@ gss_mech_free(struct gss_api_mech *gm)
for (i = 0; i < gm->gm_pf_num; i++) {
pf = &gm->gm_pfs[i];
if (pf->auth_domain_name)
kfree(pf->auth_domain_name);
kfree(pf->auth_domain_name);
pf->auth_domain_name = NULL;
}
}

3
net/sunrpc/auth_gss/gss_spkm3_seal.c
View file

@ -122,8 +122,7 @@ spkm3_make_token(struct spkm3_ctx *ctx,
return GSS_S_COMPLETE;
out_err:
if (md5cksum.data)
kfree(md5cksum.data);
kfree(md5cksum.data);
token->data = NULL;
token->len = 0;
return GSS_S_FAILURE;

3
net/sunrpc/auth_gss/gss_spkm3_token.c
View file

@ -259,8 +259,7 @@ spkm3_verify_mic_token(unsigned char **tokp, int *mic_hdrlen, unsigned char **ck
ret = GSS_S_COMPLETE;
out:
if (spkm3_ctx_id.data)
kfree(spkm3_ctx_id.data);
kfree(spkm3_ctx_id.data);
return ret;
}

6
net/sunrpc/auth_gss/gss_spkm3_unseal.c
View file

@ -120,9 +120,7 @@ spkm3_read_token(struct spkm3_ctx *ctx,
/* XXX: need to add expiration and sequencing */
ret = GSS_S_COMPLETE;
out:
if (md5cksum.data)
kfree(md5cksum.data);
if (wire_cksum.data)
kfree(wire_cksum.data);
kfree(md5cksum.data);
kfree(wire_cksum.data);
return ret;
}

9
net/sunrpc/svc.c
View file

@ -196,12 +196,9 @@ svc_exit_thread(struct svc_rqst *rqstp)
struct svc_serv *serv = rqstp->rq_server;
svc_release_buffer(rqstp);
if (rqstp->rq_resp)
kfree(rqstp->rq_resp);
if (rqstp->rq_argp)
kfree(rqstp->rq_argp);
if (rqstp->rq_auth_data)
kfree(rqstp->rq_auth_data);
kfree(rqstp->rq_resp);
kfree(rqstp->rq_argp);
kfree(rqstp->rq_auth_data);
kfree(rqstp);
/* Release the server */

3
net/sunrpc/xdr.c
View file

@ -992,8 +992,7 @@ xdr_xcode_array2(struct xdr_buf *buf, unsigned int base,
err = 0;
out:
if (elem)
kfree(elem);
kfree(elem);
if (ppages)
kunmap(*ppages);
return err;

20
net/wanrouter/af_wanpipe.c
View file

@ -1099,7 +1099,7 @@ static void release_driver(struct sock *sk)
sock_reset_flag(sk, SOCK_ZAPPED);
wp = wp_sk(sk);
if (wp && wp->mbox) {
if (wp) {
kfree(wp->mbox);
wp->mbox = NULL;
}
@ -1186,10 +1186,8 @@ static void wanpipe_kill_sock_timer (unsigned long data)
return;
}
if (wp_sk(sk)) {
kfree(wp_sk(sk));
wp_sk(sk) = NULL;
}
kfree(wp_sk(sk));
wp_sk(sk) = NULL;
if (atomic_read(&sk->sk_refcnt) != 1) {
atomic_set(&sk->sk_refcnt, 1);
@ -1219,10 +1217,8 @@ static void wanpipe_kill_sock_accept (struct sock *sk)
sk->sk_socket = NULL;
if (wp_sk(sk)) {
kfree(wp_sk(sk));
wp_sk(sk) = NULL;
}
kfree(wp_sk(sk));
wp_sk(sk) = NULL;
if (atomic_read(&sk->sk_refcnt) != 1) {
atomic_set(&sk->sk_refcnt, 1);
@ -1243,10 +1239,8 @@ static void wanpipe_kill_sock_irq (struct sock *sk)
sk->sk_socket = NULL;
if (wp_sk(sk)) {
kfree(wp_sk(sk));
wp_sk(sk) = NULL;
}
kfree(wp_sk(sk));
wp_sk(sk) = NULL;
if (atomic_read(&sk->sk_refcnt) != 1) {
atomic_set(&sk->sk_refcnt, 1);

12
net/wanrouter/wanmain.c
View file

@ -714,10 +714,8 @@ static int wanrouter_device_new_if(struct wan_device *wandev,
}
/* This code has moved from del_if() function */
if (dev->priv) {
kfree(dev->priv);
dev->priv = NULL;
}
kfree(dev->priv);
dev->priv = NULL;
#ifdef CONFIG_WANPIPE_MULTPPP
if (cnf->config_id == WANCONFIG_MPPP)
@ -851,10 +849,8 @@ static int wanrouter_delete_interface(struct wan_device *wandev, char *name)
/* Due to new interface linking method using dev->priv,
* this code has moved from del_if() function.*/
if (dev->priv){
kfree(dev->priv);
dev->priv=NULL;
}
kfree(dev->priv);
dev->priv=NULL;
unregister_netdev(dev);

12
net/xfrm/xfrm_state.c
View file

@ -62,14 +62,10 @@ static void xfrm_state_gc_destroy(struct xfrm_state *x)
{
if (del_timer(&x->timer))
BUG();
if (x->aalg)
kfree(x->aalg);
if (x->ealg)
kfree(x->ealg);
if (x->calg)
kfree(x->calg);
if (x->encap)
kfree(x->encap);
kfree(x->aalg);
kfree(x->ealg);
kfree(x->calg);
kfree(x->encap);
if (x->type) {
x->type->destructor(x);
xfrm_put_type(x->type);