HDF mount limit fix.

diff --git a/filesys.cpp b/filesys.cpp
index aeaf4aa9d2763321c2ec200370e4de97dc092623..32e478c3fd4f8c4eec2bd302515be17f59f7ace8 100644 (file)
--- a/filesys.cpp
+++ b/filesys.cpp
@@ -8754,6 +8754,8 @@ static uae_u32 REGPARAM2 filesys_dev_storeinfo (TrapContext *ctx)
 
        if (unit_no >= MAX_FILESYSTEM_UNITS)
                return -2;
+       if (sub_no >= MAX_FILESYSTEM_UNITS)
+               return -2;
 
        UnitInfo *uip = mountinfo.ui;
        uaecptr parmpacket = trap_get_areg(ctx, 0);