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Diffstat (limited to 'net/ipv4/ip_fragment.c')
-rw-r--r--net/ipv4/ip_fragment.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 145a50c..cc1da6d 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -372,7 +372,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
goto err;
err = -ENOMEM;
- if (pskb_pull(skb, ihl) == NULL)
+ if (!pskb_pull(skb, ihl))
goto err;
err = pskb_trim_rcsum(skb, end - offset);
@@ -537,7 +537,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
qp->q.fragments = head;
}
- WARN_ON(head == NULL);
+ WARN_ON(!head);
WARN_ON(FRAG_CB(head)->offset != 0);
/* Allocate a new buffer for the datagram. */
@@ -559,7 +559,8 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
struct sk_buff *clone;
int i, plen = 0;
- if ((clone = alloc_skb(0, GFP_ATOMIC)) == NULL)
+ clone = alloc_skb(0, GFP_ATOMIC);
+ if (!clone)
goto out_nomem;
clone->next = head->next;
head->next = clone;
@@ -638,7 +639,8 @@ int ip_defrag(struct sk_buff *skb, u32 user)
IP_INC_STATS_BH(net, IPSTATS_MIB_REASMREQDS);
/* Lookup (or create) queue header */
- if ((qp = ip_find(net, ip_hdr(skb), user)) != NULL) {
+ qp = ip_find(net, ip_hdr(skb), user);
+ if (qp) {
int ret;
spin_lock(&qp->q.lock);
@@ -754,7 +756,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
table = ip4_frags_ns_ctl_table;
if (!net_eq(net, &init_net)) {
table = kmemdup(table, sizeof(ip4_frags_ns_ctl_table), GFP_KERNEL);
- if (table == NULL)
+ if (!table)
goto err_alloc;
table[0].data = &net->ipv4.frags.high_thresh;
@@ -770,7 +772,7 @@ static int __net_init ip4_frags_ns_ctl_register(struct net *net)
}
hdr = register_net_sysctl(net, "net/ipv4", table);
- if (hdr == NULL)
+ if (!hdr)
goto err_reg;
net->ipv4.frags_hdr = hdr;
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