Commit 1ef7c96e authored by Samuel Thibault's avatar Samuel Thibault Committed by Paolo Bonzini
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baum: Truncate braille device size to 84x1 



Baum device bigger than 84 do not actually exist, but the user's own
Braille device might be wider than 84 columns.  Some guest drivers
would be upset by such sizes, so clamp the device size.

Signed-off-by: default avatarSamuel Thibault <samuel.thibault@ens-lyon.org>
Message-Id: <20171211001950.27843-1-samuel.thibault@ens-lyon.org>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent a4926d99

chardev/baum.c

+7 −1
Original line number Diff line number Diff line 
/*

 * QEMU Baum Braille Device

 *

 * Copyright (c) 2008, 2010-2011, 2016 Samuel Thibault

 * Copyright (c) 2008, 2010-2011, 2016-2017 Samuel Thibault

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal
@@ -239,6 +239,12 @@ static int baum_deferred_init(BaumChardev *baum) 
        brlapi_perror("baum: brlapi__getDisplaySize");

        return 0;

    }

    if (baum->y > 1) {

        baum->y = 1;

    }

    if (baum->x > 84) {

        baum->x = 84;

    }



    con = qemu_console_lookup_by_index(0);

    if (con && qemu_console_is_graphic(con)) {