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authorKevin Barnett <kevin.barnett@microchip.com>2021-03-11 14:17:42 -0600
committerMartin K. Petersen <martin.petersen@oracle.com>2021-04-05 23:02:32 -0400
commit43e97ef482eea96698af5cde99c9d55bbefe225d (patch)
treefff495374d192b47c40dfa236e4f72d4abb6f29a
parentd0cba99fd7a3781a78f751cfd4f4e3ff4d0b1ea3 (diff)
scsi: smartpqi: Correct system hangs when resuming from hibernation
Correct system hangs when resuming from hibernation after first successful hibernation/resume cycle. Rare condition involving OFA. Note: Suspend/resume is not supported on many platforms. It was originally intended for workstations. Link: https://lore.kernel.org/r/161549386295.25025.14555840632114761610.stgit@brunhilda Reviewed-by: Scott Benesh <scott.benesh@microchip.com> Reviewed-by: Scott Teel <scott.teel@microchip.com> Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com> Signed-off-by: Don Brace <don.brace@microchip.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r--drivers/scsi/smartpqi/smartpqi_init.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index dbc0d3732d85..939da70058a0 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -8651,14 +8651,21 @@ static __maybe_unused int pqi_resume(struct pci_dev *pci_dev)
pci_dev->irq, rc);
return rc;
}
+ pqi_ctrl_unblock_device_reset(ctrl_info);
pqi_ctrl_unblock_requests(ctrl_info);
pqi_scsi_unblock_requests(ctrl_info);
+ pqi_ctrl_unblock_scan(ctrl_info);
return 0;
}
pci_set_power_state(pci_dev, PCI_D0);
pci_restore_state(pci_dev);
+ pqi_ctrl_unblock_device_reset(ctrl_info);
+ pqi_ctrl_unblock_requests(ctrl_info);
+ pqi_scsi_unblock_requests(ctrl_info);
+ pqi_ctrl_unblock_scan(ctrl_info);
+
return pqi_ctrl_init_resume(ctrl_info);
}