fix:pwm新API运行异常

luat/modules/luat_lib_pwm.c

@@ -173,7 +173,8 @@ static int l_pwm_start(lua_State *L) {
     if (channel < 0) {
         return 0;
     }
-    int ret = luat_pwm_setup(confs[channel]);
+    luat_pwm_conf_t conf = *confs[channel];
+    int ret = luat_pwm_setup(&conf);
     lua_pushboolean(L, ret == 0 ? 1 : 0);
     return 1;
 }
@@ -215,7 +216,8 @@ static int l_pwm_set_duty(lua_State *L) {
         return 0;
     }
     confs[channel]->pulse = luaL_checkinteger(L, 2);
-    int ret = luat_pwm_setup(confs[channel]);
+    luat_pwm_conf_t conf = *confs[channel];
+    int ret = luat_pwm_setup(&conf);
     lua_pushboolean(L, ret == 0 ? 1 : 0);
     return 1;
 }
@@ -236,7 +238,8 @@ static int l_pwm_set_freq(lua_State *L) {
         return 0;
     }
     confs[channel]->period = luaL_checkinteger(L, 2);
-    int ret = luat_pwm_setup(confs[channel]);
+    luat_pwm_conf_t conf = *confs[channel];
+    int ret = luat_pwm_setup(&conf);
     lua_pushboolean(L, ret == 0 ? 1 : 0);
     return 1;
 }