mirror of
https://github.com/freebsd/freebsd-src
synced 2024-10-05 16:10:55 +00:00
hyperv/vmbus: Don't free the bufring if its GPADL can't be disconnected.
MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8570
This commit is contained in:
parent
32ab625a61
commit
f2aeeaff6f
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=309136
|
@ -814,8 +814,22 @@ vmbus_chan_close_internal(struct vmbus_channel *chan)
|
|||
/*
|
||||
* Disconnect the TX+RX bufrings from this channel.
|
||||
*/
|
||||
if (chan->ch_bufring_gpadl) {
|
||||
vmbus_chan_gpadl_disconnect(chan, chan->ch_bufring_gpadl);
|
||||
if (chan->ch_bufring_gpadl != 0) {
|
||||
int error1;
|
||||
|
||||
error1 = vmbus_chan_gpadl_disconnect(chan,
|
||||
chan->ch_bufring_gpadl);
|
||||
if (error1) {
|
||||
/*
|
||||
* XXX
|
||||
* The bufring GPADL is still connected; abandon
|
||||
* this bufring, instead of having mysterious
|
||||
* crash or trashed data later on.
|
||||
*/
|
||||
vmbus_chan_printf(chan, "chan%u bufring GPADL "
|
||||
"is still connected after close\n", chan->ch_id);
|
||||
chan->ch_bufring = NULL;
|
||||
}
|
||||
chan->ch_bufring_gpadl = 0;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue