From df58cc2799cf6e3210965e335fbd446b4802ee9d Mon Sep 17 00:00:00 2001
From: Isaac0-dev <62234577+Isaac0-dev@users.noreply.github.com>
Date: Sun, 9 Feb 2025 20:16:47 +1000
Subject: [PATCH] fix some crashes

thanks to @not6 for finding the save file one
---
 src/audio/external.c | 1 +
 src/game/save_file.c | 5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/audio/external.c b/src/audio/external.c
index 0bfefa31f..056e858b4 100644
--- a/src/audio/external.c
+++ b/src/audio/external.c
@@ -2950,6 +2950,7 @@ void sound_reset_background_music_default_volume(u8 seqId) {
 }
 
 void sound_set_background_music_default_volume(u8 seqId, u8 volume) {
+    if (seqId >= MAX_AUDIO_OVERRIDE) { return; }
     sBackgroundMusicDefaultVolume[seqId] = volume;
 }
 
diff --git a/src/game/save_file.c b/src/game/save_file.c
index 7fcc0689b..85efa72f1 100644
--- a/src/game/save_file.c
+++ b/src/game/save_file.c
@@ -27,7 +27,7 @@
 #define INVALID_SRC_SLOT(_ss) ((u32)_ss >= 2)
 #define INVALID_LEVEL_NUM(_ln) ((u32)_ln >= LEVEL_COUNT)
 #define INVALID_COURSE_STAR_INDEX(_ci) ((u32)_ci >= COURSE_COUNT)
-#define INVALID_COURSE_COIN_INDEX(_ci) ((u32)_ci >= COURSE_COUNT)
+#define INVALID_COURSE_COIN_INDEX(_ci) ((u32)_ci >= COURSE_STAGES_COUNT)
 
 STATIC_ASSERT(sizeof(struct SaveBuffer) == EEPROM_SIZE, "eeprom buffer size must match");
 
@@ -738,6 +738,9 @@ s32 save_file_get_course_coin_score(s32 fileIndex, s32 courseIndex) {
 }
 
 void save_file_set_course_coin_score(s32 fileIndex, s32 courseIndex, u8 coinScore) {
+    if (INVALID_FILE_INDEX(fileIndex)) { return; }
+    if (INVALID_SRC_SLOT(gSaveFileUsingBackupSlot)) { return; }
+    if (INVALID_COURSE_COIN_INDEX(courseIndex)) { return; }
     gSaveBuffer.files[fileIndex][gSaveFileUsingBackupSlot].courseCoinScores[courseIndex] = coinScore;
 }