From: Don Brace <don.brace@microchip.com>
Date: Tue, 1 Feb 2022 15:47:53 -0600
Subject: scsi: smartpqi: Fix rmmod stack trace
Patch-mainline: v5.18-rc1
Git-commit: c4ff687d25c05919382a759503bd3821689f4e2f
References: jsc#PED-1557
Prevent "BUG: scheduling while atomic: rmmod" stack trace.
Stop setting spin_locks before calling OS functions to remove devices.
Link: https://lore.kernel.org/r/164375207296.440833.4996145011193819683.stgit@brunhilda.pdev.net
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-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>
Acked-by: Martin Wilck <mwilck@suse.com>
---
drivers/scsi/smartpqi/smartpqi_init.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -2513,17 +2513,15 @@ static void pqi_remove_all_scsi_devices(
struct pqi_scsi_dev *device;
struct pqi_scsi_dev *next;
- spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
-
list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list,
scsi_device_list_entry) {
if (pqi_is_device_added(device))
pqi_remove_device(ctrl_info, device);
+ spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
list_del(&device->scsi_device_list_entry);
pqi_free_device(device);
+ spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
}
-
- spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
}
static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info)