extmod/modure: Convert alloca() to use new scoped allocation API.

1 files changed, 2 insertions, 1 deletions

diff --git a/extmod/modure.c b/extmod/modure.c
index 78de4706d..d0180881d 100644
--- a/extmod/modure.c
+++ b/extmod/modure.c
@@ -144,7 +144,7 @@ STATIC mp_obj_t re_split(size_t n_args, const mp_obj_t *args) {
     }
 
     mp_obj_t retval = mp_obj_new_list(0, NULL);
-    const char **caps = alloca(caps_num * sizeof(char*));
+    const char **caps = mp_local_alloc(caps_num * sizeof(char*));
     while (true) {
         // cast is a workaround for a bug in msvc: it treats const char** as a const pointer instead of a pointer to pointer to const char
         memset((char**)caps, 0, caps_num * sizeof(char*));
@@ -165,6 +165,7 @@ STATIC mp_obj_t re_split(size_t n_args, const mp_obj_t *args) {
             break;
         }
     }
+    mp_local_free(caps);
 
     mp_obj_t s = mp_obj_new_str_of_type(str_type, (const byte*)subj.begin, subj.end - subj.begin);
     mp_obj_list_append(retval, s);