33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From: Guo Zhi <qtxuning1999@sjtu.edu.cn>
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Date: Tue, 3 May 2022 17:17:24 +0800
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Subject: [PATCH] vga: avoid crash if no default vga card
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QEMU in some arch will crash when executing -vga help command, because
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there is no default vga model. Add check to this case and avoid crash.
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Resolves: https://gitlab.com/qemu-project/qemu/-/issues/978
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Signed-off-by: Guo Zhi <qtxuning1999@sjtu.edu.cn>
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Reviewed-by: Thomas Huth <thuth@redhat.com>
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Tested-by: Thomas Huth <thuth@redhat.com>
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Message-Id: <20220503091724.970009-1-qtxuning1999@sjtu.edu.cn>
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Signed-off-by: Laurent Vivier <laurent@vivier.eu>
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---
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softmmu/vl.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/softmmu/vl.c b/softmmu/vl.c
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index 6f646531a0..b16c1c48fa 100644
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--- a/softmmu/vl.c
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+++ b/softmmu/vl.c
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@@ -974,7 +974,8 @@ static void select_vgahw(const MachineClass *machine_class, const char *p)
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if (vga_interface_available(t) && ti->opt_name) {
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printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
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- g_str_equal(ti->opt_name, def) ? " (default)" : "");
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+ (def && g_str_equal(ti->opt_name, def)) ?
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+ " (default)" : "");
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}
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}
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exit(0);
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