From aaf12cad27f3b90c68ac955b5ac0194f10b71682 Mon Sep 17 00:00:00 2001
From: Jeffrey Pfau <jeffrey@endrift.com>
Date: Mon, 19 Sep 2016 13:52:11 -0700
Subject: [PATCH] GBA Savedata: Only unmap savedata if present

---
 CHANGES            | 1 +
 src/gba/savedata.c | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/CHANGES b/CHANGES
index 65bd04690..be6c53dd1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -42,6 +42,7 @@ Bugfixes:
  - GBA Video: Fix out-of-order OBJWIN
  - GBA: Count up timers should not count themselves
  - GBA Savedata: Fix savedata sync timer
+ - GBA Savedata: Only unmap savedata if present
 Misc:
  - 3DS: Use blip_add_delta_fast for a small speed improvement
  - OpenGL: Log shader compilation failure
diff --git a/src/gba/savedata.c b/src/gba/savedata.c
index cfa410ae4..3308b8cf2 100644
--- a/src/gba/savedata.c
+++ b/src/gba/savedata.c
@@ -46,7 +46,9 @@ void GBASavedataInit(struct GBASavedata* savedata, struct VFile* vf) {
 void GBASavedataDeinit(struct GBASavedata* savedata) {
 	if (savedata->vf) {
 		size_t size = GBASavedataSize(savedata);
-		savedata->vf->unmap(savedata->vf, savedata->data, size);
+		if (savedata->data) {
+			savedata->vf->unmap(savedata->vf, savedata->data, size);
+		}
 		savedata->vf = NULL;
 	} else {
 		switch (savedata->type) {