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authorDon Brace2022-02-01 15:47:53 -0600
committerMartin K. Petersen2022-02-07 23:38:33 -0500
commitc4ff687d25c05919382a759503bd3821689f4e2f (patch)
treebe4f8a73f9c2d0fe5071205f4b41af848ac2abca /drivers/scsi/smartpqi
parentd20b3dae630f6718a72f7ab68c3b8c8e897bf09f (diff)
scsi: smartpqi: Fix rmmod stack trace
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>
Diffstat (limited to 'drivers/scsi/smartpqi')
-rw-r--r--drivers/scsi/smartpqi/smartpqi_init.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index f0897d587454..2db9f874cc51 100644
--- 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_ctrl_info *ctrl_info)
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)