list-objects: check if filter is NULL before using

diff --git a/run-command.c b/run-command.c
index b5e6eb37c0eb3d6ed0cbd4fc35e879bf9fbd3db6..014b2165b5a2f92ff18869effafd4c6df01b33eb 100644 (file)
--- a/run-command.c
+++ b/run-command.c
@@ -452,7 +452,7 @@ static char **prep_childenv(const char *const *deltaenv)
        }
 
        /* Create an array of 'char *' to be used as the childenv */
-       childenv = xmalloc((env.nr + 1) * sizeof(char *));
+       ALLOC_ARRAY(childenv, env.nr + 1);
        for (i = 0; i < env.nr; i++)
                childenv[i] = env.items[i].util;
        childenv[env.nr] = NULL;