[NETFILTER]: arp_tables: fix NULL pointer dereference

The check is wrong and lets NULL-ptrs slip through since !IS_ERR(NULL)
is true.

Coverity #190

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index dd1048be8a01..7d7ab94a7a2e 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -771,7 +771,7 @@ static int get_entries(const struct arpt_get_entries *entries,
         struct arpt_table *t;
 
         t = xt_find_table_lock(NF_ARP, entries->name);
-        if (t || !IS_ERR(t)) {
+        if (t && !IS_ERR(t)) {
                 struct xt_table_info *private = t->private;
                 duprintf("t->private->number = %u\n",
                          private->number);