From f62485046558562d40068143e3b4eb2048fd966f Mon Sep 17 00:00:00 2001
From: Balint Kovacs <dratini0@gmail.com>
Date: Sun, 28 Jul 2019 13:32:22 +0200
Subject: [PATCH] Handle errors when reading JEDEC ID vfile

---
 arm9/source/gamecart/gamecart.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arm9/source/gamecart/gamecart.c b/arm9/source/gamecart/gamecart.c
index ac82413..c5fb467 100644
--- a/arm9/source/gamecart/gamecart.c
+++ b/arm9/source/gamecart/gamecart.c
@@ -258,7 +258,8 @@ u32 ReadCartSaveJedecId(u8* buffer, u64 offset, u64 count, CartData* cdata) {
     u8 sReg;
     if (offset >= JEDECID_AND_SREG_SIZE) return 1;
     if (offset + count > JEDECID_AND_SREG_SIZE) count = JEDECID_AND_SREG_SIZE - offset;
-    CardSPIReadJEDECIDAndStatusReg(cdata->save_type, &id, &sReg);
+    int res = CardSPIReadJEDECIDAndStatusReg(cdata->save_type, &id, &sReg);
+    if (res) return res;
     ownBuf[0] = (id >> 16) & 0xff;
     ownBuf[1] = (id >> 8) & 0xff;
     ownBuf[2] = id & 0xff;