[SCSI] sas: clear parent->rphy in sas_rphy_delete

We need to clear the backpointer on rphy removal, else we'll run into
problems with host removal after a device has been hot unplugged.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index edabbd05d258..357b52f5f996 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -697,6 +697,8 @@ sas_rphy_delete(struct sas_rphy *rphy)
         list_del(&rphy->list);
         spin_unlock(&sas_host->lock);
 
+        parent->rphy = NULL;
+
         put_device(&parent->dev);
 }
 EXPORT_SYMBOL(sas_rphy_delete);