TT#32450 Fix null free in db_redis

Change-Id: I12722a497034570f382faee42471e7684156db21

debian/patches/sipwise/fix_db_redis_time_schema.patch

@@ -4,3 +4,30 @@
 -id/int,ruid/string,username/string,domain/string,contact/string,received/string,path/string,expires/int,q/double,callid/string,cseq/int,last_modified/int,flags/int,cflags/int,user_agent/string,socket/string,methods/int,instance/string,reg_id/int,server_id/int,connection_id/int,keepalive/int,partition/int,
 +id/int,ruid/string,username/string,domain/string,contact/string,received/string,path/string,expires/time,q/double,callid/string,cseq/int,last_modified/time,flags/int,cflags/int,user_agent/string,socket/string,methods/int,instance/string,reg_id/int,server_id/int,connection_id/int,keepalive/int,partition/int,
  9
+--- a/src/modules/db_redis/redis_dbase.c
++++ b/src/modules/db_redis/redis_dbase.c
+@@ -1393,7 +1393,6 @@
+         //db_redis_key_free(&type_keys);
+         LM_DBG("+++ done with loop '%.*s'\n", k->key.len, k->key.s);
+     }
+-    pkg_free(query_v);
+     db_redis_key_free(&type_keys);
+     db_redis_key_free(&all_type_keys);
+ 
+@@ -1598,7 +1597,8 @@
+                 LM_ERR("Failed to add key to update query\n");
+                 goto error;
+             }
+-            pkg_free(v.s);
++            if (v.s)
++                pkg_free(v.s);
+         }
+         update_queries++;
+         if (db_redis_append_command_argv(con, query_v, 1) != REDIS_OK) {
+@@ -2148,4 +2148,4 @@
+         return -1;
+     db_free_result(_r);
+     return 0;
+-}
+\ No newline at end of file
++}