Fix deadlock in lpfc_fdmi_tmo_handler
lpfc_fdmi_tmo_handler was calling lpfc_fdmi_cmd with the host_lock
held. lpfc_fdmi_cmd assumes the host_lock is released as it calls functions
that acquire the host_lock. lpfc_fdmi_tmo_handler acquired the host_lock to
protect access to work_hba_events. This was already checked in the worker
thread so we can remove that code completely and remove access to the
host_lock.
Signed-off-by: Jamie Wellnitz <Jamie.Wellnitz@xxxxxxxxxx>
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -1166,11 +1166,6 @@ lpfc_fdmi_tmo_handler(struct lpfc_hba *p
{
struct lpfc_nodelist *ndlp;
- spin_lock_irq(phba->host->host_lock);
- if (!(phba->work_hba_events & WORKER_FDMI_TMO)) {
- spin_unlock_irq(phba->host->host_lock);
- return;
- }
ndlp = lpfc_findnode_did(phba, NLP_SEARCH_ALL, FDMI_DID);
if (ndlp) {
if (system_utsname.nodename[0] != '\0') {
@@ -1179,7 +1174,6 @@ lpfc_fdmi_tmo_handler(struct lpfc_hba *p
mod_timer(&phba->fc_fdmitmo, jiffies + HZ * 60);
}
}
- spin_unlock_irq(phba->host->host_lock);
return;
}
-
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