libretro: Fix key passing of update_controller_port_device()

Change the way the key of the controler type variables is passed to one
which doesn't crash.

diff --git a/frontend/libretro.c b/frontend/libretro.c
index d6c1ab8..b812d91 100644 (file)
--- a/frontend/libretro.c
+++ b/frontend/libretro.c
@@ -382,17 +382,36 @@ static void update_controller_port_device(unsigned port, unsigned device)
        if (port >= PORTS_NUMBER)
                return;
 
-       static const char **CONTROLLER_VARIABLE = {
-               "pcsx_rearmed_pad1type", "pcsx_rearmed_pad2type",
-               "pcsx_rearmed_pad3type", "pcsx_rearmed_pad4type",
-               "pcsx_rearmed_pad5type", "pcsx_rearmed_pad6type",
-               "pcsx_rearmed_pad7type", "pcsx_rearmed_pad8type",
-       };
-
        struct retro_variable var;
 
        var.value = NULL;
-       var.key = CONTROLLER_VARIABLE[port];
+       switch (port) {
+       case 0:
+               var.key = "pcsx_rearmed_pad1type";
+               break;
+       case 1:
+               var.key = "pcsx_rearmed_pad2type";
+               break;
+       case 2:
+               var.key = "pcsx_rearmed_pad3type";
+               break;
+       case 3:
+               var.key = "pcsx_rearmed_pad4type";
+               break;
+       case 4:
+               var.key = "pcsx_rearmed_pad5type";
+               break;
+       case 5:
+               var.key = "pcsx_rearmed_pad6type";
+               break;
+       case 6:
+               var.key = "pcsx_rearmed_pad7type";
+               break;
+       case 7:
+               var.key = "pcsx_rearmed_pad8type";
+               break;
+       }
+
        if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) || var.value)
        {
                if (strcmp(var.value, "standard") == 0)