accept NULL in 'free' functions

diff --git a/crypto/ec/ec_lib.c b/crypto/ec/ec_lib.c
index e0d78d67fb9c3891860c3d83987dc0f1e65c34be..0cf485de60150706d38696b6d0ff73683de39a81 100644 (file)
--- a/crypto/ec/ec_lib.c
+++ b/crypto/ec/ec_lib.c
@@ -106,6 +106,8 @@ EC_GROUP *EC_GROUP_new(const EC_METHOD *meth)
 
 void EC_GROUP_free(EC_GROUP *group)
        {
+       if (!group) return;
+
        if (group->meth->group_finish != 0)
                group->meth->group_finish(group);
 
@@ -117,6 +119,8 @@ void EC_GROUP_free(EC_GROUP *group)
 
 void EC_GROUP_clear_free(EC_GROUP *group)
        {
+       if (!group) return;
+
        if (group->meth->group_clear_finish != 0)
                group->meth->group_clear_finish(group);
        else if (group->meth != NULL && group->meth->group_finish != 0)
@@ -337,6 +341,8 @@ EC_POINT *EC_POINT_new(const EC_GROUP *group)
 
 void EC_POINT_free(EC_POINT *point)
        {
+       if (!point) return;
+
        if (point->meth->point_finish != 0)
                point->meth->point_finish(point);
        OPENSSL_free(point);
@@ -345,6 +351,8 @@ void EC_POINT_free(EC_POINT *point)
 
 void EC_POINT_clear_free(EC_POINT *point)
        {
+       if (!point) return;
+
        if (point->meth->point_clear_finish != 0)
                point->meth->point_clear_finish(point);
        else if (point->meth != NULL && point->meth->point_finish != 0)