ipv4: Use predefined value for readability

Signed-off-by: Hisao Tanabe <xtanabe@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index f4ab72e19af923536656e734996f4b9201684b58..5e7aecea05cd2afbd3e3e13f417e26687517b468 100644 (file)
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -364,7 +364,7 @@ int ip_options_compile(struct net *net,
                        }
                        if (optptr[2] <= optlen) {
                                unsigned char *timeptr = NULL;
-                               if (optptr[2]+3 > optptr[1]) {
+                               if (optptr[2]+3 > optlen) {
                                        pp_ptr = optptr + 2;
                                        goto error;
                                }
@@ -376,7 +376,7 @@ int ip_options_compile(struct net *net,
                                        optptr[2] += 4;
                                        break;
                                case IPOPT_TS_TSANDADDR:
-                                       if (optptr[2]+7 > optptr[1]) {
+                                       if (optptr[2]+7 > optlen) {
                                                pp_ptr = optptr + 2;
                                                goto error;
                                        }
@@ -390,7 +390,7 @@ int ip_options_compile(struct net *net,
                                        optptr[2] += 8;
                                        break;
                                case IPOPT_TS_PRESPEC:
-                                       if (optptr[2]+7 > optptr[1]) {
+                                       if (optptr[2]+7 > optlen) {
                                                pp_ptr = optptr + 2;
                                                goto error;
                                        }