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char: update read handler in all cases 

In commit ac1b84dd1 (rhbz#1027181), a check was added to only update the
"read handler" when the front-end is opened, because the read callbacks
were not restored when a device is plugged. However, this seems not
correct, the handler is correctly set back on hotplug (in
virtconsole_realize) and the bug can no longer be reproduced.

Calling chr_update_read_handler() allows to fix the mux driver to stop
calling the child handlers (which may be going to be destroyed).

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161003094704.18087-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marc-André Lureau 2016-10-03 13:47:03 +04:00 committed by Paolo Bonzini
parent 949055a254
commit 6a7b2b2100
1 changed files with 1 additions and 1 deletions
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2
qemu-char.c
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@ -469,7 +469,7 @@ void qemu_chr_add_handlers_full(CharDriverState *s,
s->chr_read = fd_read;
s->chr_event = fd_event;
s->handler_opaque = opaque;
if (fe_open && s->chr_update_read_handler) {
if (s->chr_update_read_handler) {
s->chr_update_read_handler(s, context);
}