4 files changed, 19 insertions, 17 deletions

diff --git a/backends/platform/ds/arm9/source/gbampsave.cpp b/backends/platform/ds/arm9/source/gbampsave.cpp
index 9c8af81a6e..8209b783fa 100644
--- a/backends/platform/ds/arm9/source/gbampsave.cpp
+++ b/backends/platform/ds/arm9/source/gbampsave.cpp
@@ -54,8 +54,8 @@ bool GBAMPSaveFile::eos() const {
 	return DS::std_feof(handle);
 }
 
-void GBAMPSaveFile::skip(uint32 bytes) {
-	DS::std_fseek(handle, bytes, SEEK_CUR);
+bool GBAMPSaveFile::skip(uint32 bytes) {
+	return DS::std_fseek(handle, bytes, SEEK_CUR) == 0;
 }
 
 void GBAMPSaveFile::flushSaveBuffer() {
@@ -67,11 +67,11 @@ void GBAMPSaveFile::flushSaveBuffer() {
 	}
 }
 
-uint32 GBAMPSaveFile::pos() const {
+int32 GBAMPSaveFile::pos() const {
 	return DS::std_ftell(handle);
 }
 
-uint32 GBAMPSaveFile::size() const {
+int32 GBAMPSaveFile::size() const {
 	int position = pos();
 	DS::std_fseek(handle, 0, SEEK_END);
 	int size = DS::std_ftell(handle);
@@ -80,7 +80,7 @@ uint32 GBAMPSaveFile::size() const {
 }
 
 void GBAMPSaveFile::seek(int32 pos, int whence) {
-	DS::std_fseek(handle, pos, whence);
+	return DS::std_fseek(handle, pos, whence) == 0;
 }
 
 
diff --git a/backends/platform/ds/arm9/source/gbampsave.h b/backends/platform/ds/arm9/source/gbampsave.h
index d0cbc68bfd..6ddc4fd964 100644
--- a/backends/platform/ds/arm9/source/gbampsave.h
+++ b/backends/platform/ds/arm9/source/gbampsave.h
@@ -43,11 +43,11 @@ public:
 	virtual uint32 write(const void *buf, uint32 size);
 	
 	virtual bool eos() const;
-	virtual void skip(uint32 bytes);
+	virtual bool skip(uint32 bytes);
 
-	virtual uint32 pos() const;
-	virtual uint32 size() const;
-	virtual void seek(int32 pos, int whence);
+	virtual int32 pos() const;
+	virtual int32 size() const;
+	virtual bool seek(int32 pos, int whence);
 	
 	void flushSaveBuffer();
 	
diff --git a/backends/platform/ds/arm9/source/ramsave.cpp b/backends/platform/ds/arm9/source/ramsave.cpp
index be355ce76f..8442fd6b88 100644
--- a/backends/platform/ds/arm9/source/ramsave.cpp
+++ b/backends/platform/ds/arm9/source/ramsave.cpp
@@ -181,15 +181,15 @@ uint32 DSSaveFile::read(void *buf, uint32 size) {
 	return size;
 }
 
-uint32 DSSaveFile::pos() const {
+int32 DSSaveFile::pos() const {
 	return ptr;
 }
 
-uint32 DSSaveFile::size() const {
+int32 DSSaveFile::size() const {
 	return save.size;
 }
 
-void DSSaveFile::seek(int32 pos, int whence) {
+bool DSSaveFile::seek(int32 pos, int whence) {
 	switch (whence) {
 		case SEEK_SET: {
 			ptr = pos;
@@ -204,15 +204,17 @@ void DSSaveFile::seek(int32 pos, int whence) {
 			break;
 		}
 	}
+	return true;
 }
 
 bool DSSaveFile::eos() const {
 	return ptr >= (int) save.size;
 }
 
-void DSSaveFile::skip(uint32 bytes) {
+bool DSSaveFile::skip(uint32 bytes) {
 	ptr = ptr + bytes;
 	if (ptr > (int) save.size) ptr = save.size;
+	return true;
 }
 
 uint32 DSSaveFile::write(const void *buf, uint32 size) {
diff --git a/backends/platform/ds/arm9/source/ramsave.h b/backends/platform/ds/arm9/source/ramsave.h
index f919da18db..e276775b66 100644
--- a/backends/platform/ds/arm9/source/ramsave.h
+++ b/backends/platform/ds/arm9/source/ramsave.h
@@ -62,11 +62,11 @@ public:
 	
 	bool isOpen() const { return isOpenFlag; }
 	virtual bool eos() const;
-	virtual void skip(uint32 size);
+	virtual bool skip(uint32 size);
 	
-	virtual uint32 pos() const;
-	virtual uint32 size() const;
-	virtual void seek(int32 pos, int whence);
+	virtual int32 pos() const;
+	virtual int32 size() const;
+	virtual bool seek(int32 pos, int whence);
 
 	uint32 read(void *buf, uint32 size);
 	uint32 write(const void *buf, uint32 size);