Author: sephe
Date: Fri Nov 4 01:14:41 2016
New Revision: 308278
URL: https://svnweb.freebsd.org/changeset/base/308278
Log:
hyperv/vmbus: Reset ch_dev, once the child is deleted.
So it will not be mis-used later on, e.g. in vmbus_chan_printf().
Submitted by: dexuan
Reported by: dexuan
MFC after: 1 week
Sponsored by: Microsoft
Modified:
head/sys/dev/hyperv/vmbus/vmbus.c
Modified: head/sys/dev/hyperv/vmbus/vmbus.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/vmbus.c Fri Nov 4 01:12:32 2016
(r308277)
+++ head/sys/dev/hyperv/vmbus/vmbus.c Fri Nov 4 01:14:41 2016
(r308278)
@@ -954,6 +954,7 @@ vmbus_delete_child(struct vmbus_channel
if (chan->ch_dev != NULL) {
error = device_delete_child(chan->ch_vmbus->vmbus_dev,
chan->ch_dev);
+ chan->ch_dev = NULL;
}
mtx_unlock(&Giant);
return (error);
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