Snap for 7339742 from 6df6319da8adf369af3a692adba484afc7d87ed7 to sc-v2-release

Change-Id: I23bb08d981fdf76571ace99d2d49afa3b42ecad6
diff --git a/check.c b/check.c
index 9519315..c164316 100644
--- a/check.c
+++ b/check.c
@@ -186,8 +186,10 @@
 	free(fat);
 	close(dosfs);
 
-	if (mod & (FSFATMOD|FSDIRMOD))
+	if (mod & (FSFATMOD|FSDIRMOD)){
 		pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n");
+		return 4;
+	}
 
 	return ret;
 }