GLK: Fix out of bound access in detection code

This caused some random asserts when for example trying to add any
game as Common::Str::hasSuffixIgnoreCase could be called with a null
pointer.

1 files changed, 2 insertions, 2 deletions

diff --git a/engines/glk/alan2/detection.cpp b/engines/glk/alan2/detection.cpp
index f4be3f1c16..d51a109c5e 100644
--- a/engines/glk/alan2/detection.cpp
+++ b/engines/glk/alan2/detection.cpp
@@ -46,7 +46,7 @@ Alan2Descriptor Alan2MetaEngine::findGame(const char *gameId) {
 }
 
 bool Alan2MetaEngine::detectGames(const Common::FSList &fslist, DetectedGames &gameList) {
-	const char *const EXTENSIONS[3] = { ".acd", ".dat" };
+	const char *const EXTENSIONS[2] = { ".acd", ".dat" };
 
 	// Loop through the files of the folder
 	for (Common::FSList::const_iterator file = fslist.begin(); file != fslist.end(); ++file) {
@@ -55,7 +55,7 @@ bool Alan2MetaEngine::detectGames(const Common::FSList &fslist, DetectedGames &g
 			continue;
 		Common::String filename = file->getName();
 		bool hasExt = false;
-		for (int idx = 0; idx < 3 && !hasExt; ++idx)
+		for (int idx = 0; idx < 2 && !hasExt; ++idx)
 			hasExt = filename.hasSuffixIgnoreCase(EXTENSIONS[idx]);
 		if (!hasExt)
 			continue;