handle freeing null keyblock

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@21846 dc483132-0cff-0310-8789-dd5450dbe970

diff --git a/src/lib/crypto/keyblocks.c b/src/lib/crypto/keyblocks.c
index 5e698cc5a655e894db8c7b0771b9a384cba4b01c..5912c81b43159f34d6258356d4d0bf1dbc870534 100644 (file)
--- a/src/lib/crypto/keyblocks.c
+++ b/src/lib/crypto/keyblocks.c
@@ -69,11 +69,11 @@ krb5int_c_free_keyblock(krb5_context context, register krb5_keyblock *val)
 }
 
 void 
-krb5int_c_free_keyblock_contents(krb5_context context, register krb5_keyblock *key)
+krb5int_c_free_keyblock_contents(krb5_context context, krb5_keyblock *key)
 {
-     if (key->contents) {
-       krb5int_zap_data (key->contents, key->length);
-         free(key->contents);
-         key->contents = 0;
-     }
+    if (key && key->contents) {
+       krb5int_zap_data (key->contents, key->length);
+       free(key->contents);
+       key->contents = 0;
+    }
 }