vhost-user: disconnect on HUP
In some cases, qemu_chr_fe_read_all() on HUP event doesn't raise CHR_EVENT_CLOSED because the read/recv function returns -1 on disconnected peers (for example with tch_chr_recv, an ECONNRESET errno overwritten as EIO). It is simpler to explicitely disconnect on HUP, rising CHR_EVENT_CLOSED if it wasn't disconnected already. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -188,12 +188,8 @@ static gboolean net_vhost_user_watch(GIOChannel *chan, GIOCondition cond,
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void *opaque)
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{
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VhostUserState *s = opaque;
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uint8_t buf[1];
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/* We don't actually want to read anything, but CHR_EVENT_CLOSED will be
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* raised as a side-effect of the read.
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*/
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qemu_chr_fe_read_all(s->chr, buf, sizeof(buf));
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qemu_chr_disconnect(s->chr);
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return FALSE;
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}
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