Revert "lpfc: Delete unnecessary checks before the function call mempool_destroy"

This reverts commit 9be321819c43417432a8376428b90fe3fe3a3510 which
caused a regression on hardware using the SLI3 interface.

Reported-by: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: <stable@vger.kernel.org> # 4.6+
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <jejb@linux.vnet.ibm.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index 4fb3581d4614..3fa65338d3f5 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -231,13 +231,15 @@ lpfc_mem_free(struct lpfc_hba *phba)
         if (phba->lpfc_hbq_pool)
                 pci_pool_destroy(phba->lpfc_hbq_pool);
         phba->lpfc_hbq_pool = NULL;
-        mempool_destroy(phba->rrq_pool);
+
+        if (phba->rrq_pool)
+                mempool_destroy(phba->rrq_pool);
         phba->rrq_pool = NULL;
 
         /* Free NLP memory pool */
         mempool_destroy(phba->nlp_mem_pool);
         phba->nlp_mem_pool = NULL;
-        if (phba->sli_rev == LPFC_SLI_REV4) {
+        if (phba->sli_rev == LPFC_SLI_REV4 && phba->active_rrq_pool) {
                 mempool_destroy(phba->active_rrq_pool);
                 phba->active_rrq_pool = NULL;
         }