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xen_console: ignore console disconnect events from console/0

The first console has a different location compared to other PV devices
(console, rather than device/console/0) and doesn't obey the xenstore
state protocol. We already special case the first console in con_init
and con_initialise, we should also do it in con_disconnect.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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commit 028c85f0fffe5d4fdd435e06af4188397acf1cb6 1 parent 8a22565
@sstabellini sstabellini authored
Showing with 3 additions and 0 deletions.
  1. +3 −0  hw/xen_console.c
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3  hw/xen_console.c
@@ -248,6 +248,9 @@ static void con_disconnect(struct XenDevice *xendev)
{
struct XenConsole *con = container_of(xendev, struct XenConsole, xendev);
+ if (!xendev->dev) {
+ return;
+ }
if (con->chr)
qemu_chr_add_handlers(con->chr, NULL, NULL, NULL, NULL);
xen_be_unbind_evtchn(&con->xendev);
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