haraldwolff/qemu-patch-raspberry4
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scsi: always call notifier on async cancellation

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This was found by code inspection.  If the request is cancelled twice,
the notifier is never called on the second cancellation request,
and hence for example a TMF might never finish.

All the calls in scsi_req_cancel_async are idempotent, so the change
is safe.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1450290827-30508-2-git-send-email-pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-12-16 19:33:44 +01:00
parent 8aad35f678
commit 36896bffd1
1 changed files with 0 additions and 3 deletions
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3
hw/scsi/scsi-bus.c
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@ -1759,9 +1759,6 @@ void scsi_req_cancel_async(SCSIRequest *req, Notifier *notifier)
if (notifier) {
notifier_list_add(&req->cancel_notifiers, notifier);
}
if (req->io_canceled) {
return;
}
scsi_req_ref(req);
scsi_req_dequeue(req);
req->io_canceled = true;