QEMU in some arch will crash when executing -vga help command, because
there is no default vga model. Add check to this case and avoid crash.
Signed-off-by: Guo Zhi <qtxuning1999@sjtu.edu.cn>
---
softmmu/vl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/softmmu/vl.c b/softmmu/vl.c
index c2919579fd..a49e29312b 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -977,7 +977,8 @@ static void select_vgahw(const MachineClass *machine_class,
const char *p)
if (vga_interface_available(t) && ti->opt_name) {
printf("%-20s %s%s\n", ti->opt_name, ti->name ?: "",
- g_str_equal(ti->opt_name, def) ? " (default)" : "");
+ (def && g_str_equal(ti->opt_name, def)) ?
+ " (default)" : "");
}
}
exit(0);