Fix memory leak in API/CLI to create/modify SR policies

The segment list vector built by the API/CLI is not freed after
SR policy creation or modification.

Change-Id: If439005481cada6c6af7cb560fe7a4381dd49384
Signed-off-by: John Lo <loj@cisco.com>
diff --git a/src/vnet/srmpls/sr_mpls_api.c b/src/vnet/srmpls/sr_mpls_api.c
index a6294e3..2c36c0d 100644
--- a/src/vnet/srmpls/sr_mpls_api.c
+++ b/src/vnet/srmpls/sr_mpls_api.c
@@ -67,6 +67,7 @@
   int rv = 0;
   rv = sr_mpls_policy_add (ntohl (mp->bsid),
 			   segments, mp->type, ntohl (mp->weight));
+  vec_free (segments);
 
   REPLY_MACRO (VL_API_SR_MPLS_POLICY_ADD_REPLY);
 }
@@ -91,6 +92,7 @@
   rv = sr_mpls_policy_mod (ntohl (mp->bsid),
 			   mp->operation, segments, ntohl (mp->sl_index),
 			   ntohl (mp->weight));
+  vec_free (segments);
 
   REPLY_MACRO (VL_API_SR_MPLS_POLICY_MOD_REPLY);
 }
diff --git a/src/vnet/srmpls/sr_mpls_policy.c b/src/vnet/srmpls/sr_mpls_policy.c
index 86cd169..8fc7e73 100755
--- a/src/vnet/srmpls/sr_mpls_policy.c
+++ b/src/vnet/srmpls/sr_mpls_policy.c
@@ -502,6 +502,7 @@
       rv = sr_mpls_policy_add (bsid, segments,
 			       (is_spray ? SR_POLICY_TYPE_SPRAY :
 				SR_POLICY_TYPE_DEFAULT), weight);
+      vec_free (segments);
     }
   else if (is_del)
     rv = sr_mpls_policy_del (bsid);
@@ -516,6 +517,7 @@
       if (operation == 3 && weight == (u32) ~ 0)
 	return clib_error_return (0, "No new weight for the SL specified");
       rv = sr_mpls_policy_mod (bsid, operation, segments, sl_index, weight);
+      vec_free (segments);
     }
   switch (rv)
     {
diff --git a/src/vnet/srv6/sr_api.c b/src/vnet/srv6/sr_api.c
index 17d4821..c37923f 100644
--- a/src/vnet/srv6/sr_api.c
+++ b/src/vnet/srv6/sr_api.c
@@ -114,6 +114,7 @@
 		      segments,
 		      ntohl (mp->sids.weight),
 		      mp->type, ntohl (mp->fib_table), mp->is_encap);
+  vec_free (segments);
 
   REPLY_MACRO (VL_API_SR_POLICY_ADD_REPLY);
 }
@@ -147,6 +148,7 @@
 		      mp->operation,
 		      segments, ntohl (mp->sl_index),
 		      ntohl (mp->sids.weight));
+  vec_free (segments);
 
   REPLY_MACRO (VL_API_SR_POLICY_MOD_REPLY);
 }
diff --git a/src/vnet/srv6/sr_policy_rewrite.c b/src/vnet/srv6/sr_policy_rewrite.c
index ad73d29..62ce224 100755
--- a/src/vnet/srv6/sr_policy_rewrite.c
+++ b/src/vnet/srv6/sr_policy_rewrite.c
@@ -886,6 +886,7 @@
       rv = sr_policy_add (&bsid, segments, weight,
 			  (is_spray ? SR_POLICY_TYPE_SPRAY :
 			   SR_POLICY_TYPE_DEFAULT), fib_table, is_encap);
+      vec_free (segments);
     }
   else if (is_del)
     rv = sr_policy_del ((sr_policy_index != (u32) ~ 0 ? NULL : &bsid),
@@ -903,6 +904,7 @@
       rv = sr_policy_mod ((sr_policy_index != (u32) ~ 0 ? NULL : &bsid),
 			  sr_policy_index, fib_table, operation, segments,
 			  sl_index, weight);
+      vec_free (segments);
     }
 
   switch (rv)