ipv6: Use IS_ERR_OR_NULL().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 420e563..80d5980 100644 (file)
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1051,7 +1051,7 @@ retry:
                ipv6_add_addr(idev, &addr, tmp_plen,
                              ipv6_addr_type(&addr)&IPV6_ADDR_SCOPE_MASK,
                              addr_flags) : NULL;
-       if (!ift || IS_ERR(ift)) {
+       if (IS_ERR_OR_NULL(ift)) {
                in6_ifa_put(ifp);
                in6_dev_put(idev);
                pr_info("%s: retry temporary address regeneration\n", __func__);
@@ -2079,7 +2079,7 @@ ok:
                                                    addr_type&IPV6_ADDR_SCOPE_MASK,
                                                    addr_flags);
 
-                       if (!ifp || IS_ERR(ifp)) {
+                       if (IS_ERR_OR_NULL(ifp)) {
                                in6_dev_put(in6_dev);
                                return;
                        }