Change const byte* to const char* where sensible.

This removes need for some casts (at least, more than it adds need
for new casts!).

3 files changed, 5 insertions, 4 deletions

diff --git a/unix/input.c b/unix/input.c
index 06190306ab..4d856f2ff8 100644
--- a/unix/input.c
+++ b/unix/input.c
@@ -77,7 +77,7 @@ STATIC mp_obj_t mp_builtin_input(uint n_args, const mp_obj_t *args) {
     if (line == NULL) {
         nlr_raise(mp_obj_new_exception(&mp_type_EOFError));
     }
-    mp_obj_t o = mp_obj_new_str((const byte*)line, strlen(line), false);
+    mp_obj_t o = mp_obj_new_str(line, strlen(line), false);
     free(line);
     return o;
 }
diff --git a/unix/modffi.c b/unix/modffi.c
index 4ac9fef5aa..bfc840ceff 100644
--- a/unix/modffi.c
+++ b/unix/modffi.c
@@ -134,7 +134,7 @@ STATIC mp_obj_t return_ffi_value(ffi_arg val, char type)
     switch (type) {
         case 's': {
             const char *s = (const char *)val;
-            return mp_obj_new_str((const byte *)s, strlen(s), false);
+            return mp_obj_new_str(s, strlen(s), false);
         }
         case 'v':
             return mp_const_none;
diff --git a/unix/modsocket.c b/unix/modsocket.c
index c4e80d3d52..16039bd813 100644
--- a/unix/modsocket.c
+++ b/unix/modsocket.c
@@ -167,8 +167,9 @@ STATIC mp_obj_t socket_recv(uint n_args, const mp_obj_t *args) {
     int out_sz = recv(self->fd, buf, sz, flags);
     RAISE_ERRNO(out_sz, errno);
 
-    buf = m_realloc(buf, sz, out_sz);
-    return MP_OBJ_NEW_QSTR(qstr_from_strn_take(buf, out_sz, out_sz));
+    mp_obj_t ret = MP_OBJ_NEW_QSTR(qstr_from_strn(buf, out_sz));
+    m_del(char, buf, sz);
+    return ret;
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(socket_recv_obj, 2, 3, socket_recv);