ArchiveUtil: use signed return type instead of unsigned

The ExtractFileFromArchive function can sometimes return -1 on error,
however the function's return type was specified as u32, which would
mean that it would instead be represented as the maximum value.
Change the function's return type to the signed s32 instead, and
correct uses.

3 files changed, 3 insertions, 3 deletions

diff --git a/src/frontend/qt_sdl/ArchiveUtil.cpp b/src/frontend/qt_sdl/ArchiveUtil.cpp
index 91b993c..6f4b134 100644
--- a/src/frontend/qt_sdl/ArchiveUtil.cpp
+++ b/src/frontend/qt_sdl/ArchiveUtil.cpp
@@ -119,7 +119,7 @@ QVector<QString> ExtractFileFromArchive(QString path, QString wantedFile, QByteA
 
 }
 
-u32 ExtractFileFromArchive(QString path, QString wantedFile, u8** filedata, u32* filesize)
+s32 ExtractFileFromArchive(QString path, QString wantedFile, u8** filedata, u32* filesize)
 {
     struct archive *a = archive_read_new();
     struct archive_entry *entry;
diff --git a/src/frontend/qt_sdl/ArchiveUtil.h b/src/frontend/qt_sdl/ArchiveUtil.h
index d9327c8..14ff996 100644
--- a/src/frontend/qt_sdl/ArchiveUtil.h
+++ b/src/frontend/qt_sdl/ArchiveUtil.h
@@ -36,7 +36,7 @@ namespace Archive
 {
 
 QVector<QString> ListArchive(QString path);
-u32 ExtractFileFromArchive(QString path, QString wantedFile, u8** filedata, u32* filesize);
+s32 ExtractFileFromArchive(QString path, QString wantedFile, u8** filedata, u32* filesize);
 //QVector<QString> ExtractFileFromArchive(QString path, QString wantedFile, QByteArray *romBuffer);
 //u32 ExtractFileFromArchive(const char* path, const char* wantedFile, u8 **romdata);
 
diff --git a/src/frontend/qt_sdl/ROMManager.cpp b/src/frontend/qt_sdl/ROMManager.cpp
index 6b2b0b0..0bb6b7f 100644
--- a/src/frontend/qt_sdl/ROMManager.cpp
+++ b/src/frontend/qt_sdl/ROMManager.cpp
@@ -1362,7 +1362,7 @@ bool LoadGBAROM(QStringList filepath)
     {
         // file inside archive
 
-        u32 lenread = Archive::ExtractFileFromArchive(filepath.at(0), filepath.at(1), &filedata, &filelen);
+        s32 lenread = Archive::ExtractFileFromArchive(filepath.at(0), filepath.at(1), &filedata, &filelen);
         if (lenread < 0) return false;
         if (!filedata) return false;
         if (lenread != filelen)