[PATCH 1/2] scsi: lpfc: spin_lock_irq() is not nestable

[Dan Carpenter]

We're calling spin_lock_irq() multiple times, the problem is that on the
first spin_unlock_irq() then we will re-enable IRQs and we don't want
that.

Fixes: 966bb5b71196 ("scsi: lpfc: Break up IO ctx list into a separate get and 
put list")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index 7dc061a14f95..afc523209845 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -866,44 +866,44 @@ lpfc_nvmet_cleanup_io_context(struct lpfc_hba *phba)
        unsigned long flags;
 
        spin_lock_irqsave(&phba->sli4_hba.nvmet_ctx_get_lock, flags);
-       spin_lock_irq(&phba->sli4_hba.nvmet_ctx_put_lock);
+       spin_lock(&phba->sli4_hba.nvmet_ctx_put_lock);
        list_for_each_entry_safe(ctx_buf, next_ctx_buf,
                        &phba->sli4_hba.lpfc_nvmet_ctx_get_list, list) {
-               spin_lock_irq(&phba->sli4_hba.abts_nvme_buf_list_lock);
+               spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
                list_del_init(&ctx_buf->list);
-               spin_unlock_irq(&phba->sli4_hba.abts_nvme_buf_list_lock);
+               spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
                __lpfc_clear_active_sglq(phba,
                                         ctx_buf->sglq->sli4_lxritag);
                ctx_buf->sglq->state = SGL_FREED;
                ctx_buf->sglq->ndlp = NULL;
 
-               spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
+               spin_lock(&phba->sli4_hba.sgl_list_lock);
                list_add_tail(&ctx_buf->sglq->list,
                              &phba->sli4_hba.lpfc_nvmet_sgl_list);
-               spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
+               spin_unlock(&phba->sli4_hba.sgl_list_lock);
 
                lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
                kfree(ctx_buf->context);
        }
        list_for_each_entry_safe(ctx_buf, next_ctx_buf,
                        &phba->sli4_hba.lpfc_nvmet_ctx_put_list, list) {
-               spin_lock_irq(&phba->sli4_hba.abts_nvme_buf_list_lock);
+               spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock);
                list_del_init(&ctx_buf->list);
-               spin_unlock_irq(&phba->sli4_hba.abts_nvme_buf_list_lock);
+               spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock);
                __lpfc_clear_active_sglq(phba,
                                         ctx_buf->sglq->sli4_lxritag);
                ctx_buf->sglq->state = SGL_FREED;
                ctx_buf->sglq->ndlp = NULL;
 
-               spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
+               spin_lock(&phba->sli4_hba.sgl_list_lock);
                list_add_tail(&ctx_buf->sglq->list,
                              &phba->sli4_hba.lpfc_nvmet_sgl_list);
-               spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
+               spin_unlock(&phba->sli4_hba.sgl_list_lock);
 
                lpfc_sli_release_iocbq(phba, ctx_buf->iocbq);
                kfree(ctx_buf->context);
        }
-       spin_unlock_irq(&phba->sli4_hba.nvmet_ctx_put_lock);
+       spin_unlock(&phba->sli4_hba.nvmet_ctx_put_lock);
        spin_unlock_irqrestore(&phba->sli4_hba.nvmet_ctx_get_lock, flags);
 }