diff options
| author | James Smart <jsmart2021@gmail.com> | 2021-09-07 09:52:25 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-09-13 22:15:46 -0400 |
| commit | 450907424d9ebcc28fab42a065c3cddce49ee97d (patch) | |
| tree | 4aab426a96e7126dc0406fa73fbc2dabd53f9fcf /drivers/scsi/elx | |
| parent | ef7ae7f746e95c6fa4ec2bcfacb949c36263da78 (diff) | |
scsi: elx: efct: Do not hold lock while calling fc_vport_terminate()
Smatch checker reported the following error:
drivers/base/power/sysfs.c:833 dpm_sysfs_remove()
warn: sleeping in atomic context
With a calling sequence of:
efct_lio_npiv_drop_nport() <- disables preempt
-> fc_vport_terminate()
-> device_del()
-> dpm_sysfs_remove()
Issue is efct_lio_npiv_drop_nport() is making the fc_vport_terminate() call
while holding a lock w/ ipl raised.
It is unnecessary to hold the lock over this call, shift where the lock is
taken.
Link: https://lore.kernel.org/r/20210907165225.10821-1-jsmart2021@gmail.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Co-developed-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: Ram Vegesna <ram.vegesna@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/elx')
| -rw-r--r-- | drivers/scsi/elx/efct/efct_lio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/elx/efct/efct_lio.c b/drivers/scsi/elx/efct/efct_lio.c index bb3b460dc0bc..4d73e92909ab 100644 --- a/drivers/scsi/elx/efct/efct_lio.c +++ b/drivers/scsi/elx/efct/efct_lio.c @@ -880,11 +880,11 @@ efct_lio_npiv_drop_nport(struct se_wwn *wwn) struct efct *efct = lio_vport->efct; unsigned long flags = 0; - spin_lock_irqsave(&efct->tgt_efct.efct_lio_lock, flags); - if (lio_vport->fc_vport) fc_vport_terminate(lio_vport->fc_vport); + spin_lock_irqsave(&efct->tgt_efct.efct_lio_lock, flags); + list_for_each_entry_safe(vport, next_vport, &efct->tgt_efct.vport_list, list_entry) { if (vport->lio_vport == lio_vport) { |