From: Nicholas Piggin npiggin@gmail.com
[ Upstream commit d3566abb1a1e7772116e4d50fb6a58d19c9802e5 ]
In shutdown/reboot paths, the timer is not stopped:
qla2x00_shutdown pci_device_shutdown device_shutdown kernel_restart_prepare kernel_restart sys_reboot
This causes lockups (on powerpc) when firmware config space access calls are interrupted by smp_send_stop later in reboot.
Fixes: e30d1756480dc ("[SCSI] qla2xxx: Addition of shutdown callback handler.") Link: https://lore.kernel.org/r/20191024063804.14538-1-npiggin@gmail.com Signed-off-by: Nicholas Piggin npiggin@gmail.com Acked-by: Himanshu Madhani hmadhani@marvell.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/qla2xxx/qla_os.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 856a7ceb9a041..18ee614fe07f5 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -3496,6 +3496,10 @@ qla2x00_shutdown(struct pci_dev *pdev) qla2x00_try_to_stop_firmware(vha); }
+ /* Disable timer */ + if (vha->timer_active) + qla2x00_stop_timer(vha); + /* Turn adapter off line */ vha->flags.online = 0;