ahci: clear aiocb in ncq_cb
Similar to existing fixes for IDE (87ac25fd) and ATAPI (7f951b2d), the AIOCB must be cleared in the callback. Otherwise, we may accidentally try to reset a dangling pointer in bdrv_aio_cancel() from a port reset. Signed-off-by: NJohn Snow <jsnow@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Message-id: 1474575040-32079-2-git-send-email-jsnow@redhat.com Signed-off-by: NJohn Snow <jsnow@redhat.com> (cherry picked from commit df403bc5) Signed-off-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
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