scsi: hisi_sas: Check whether debugfs is enabled before removing or releasing it

hisi_sas debugfs remove should be executed only when debugfs is enabled.
Check whether debugfs is enabled and then remove it only if enabled.
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1705904747-62186-4-git-send-email-chenxiang66@hisilicon.comSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/hisi_sas/hisi_sas_main.c

@@ -2625,7 +2625,8 @@ static __exit void hisi_sas_exit(void)
 {
 	sas_release_transport(hisi_sas_stt);
 
-	debugfs_remove(hisi_sas_debugfs_dir);
+	if (hisi_sas_debugfs_enable)
+		debugfs_remove(hisi_sas_debugfs_dir);
 }
 
 module_init(hisi_sas_init);

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

@@ -4902,7 +4902,8 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 err_out_remove_host:
 	scsi_remove_host(shost);
 err_out_undo_debugfs:
-	debugfs_exit_v3_hw(hisi_hba);
+	if (hisi_sas_debugfs_enable)
+		debugfs_exit_v3_hw(hisi_hba);
 err_out_free_host:
 	hisi_sas_free(hisi_hba);
 	scsi_host_put(shost);
@@ -4942,7 +4943,9 @@ static void hisi_sas_v3_remove(struct pci_dev *pdev)
 
 	hisi_sas_v3_destroy_irqs(pdev, hisi_hba);
 	hisi_sas_free(hisi_hba);
-	debugfs_exit_v3_hw(hisi_hba);
+	if (hisi_sas_debugfs_enable)
+		debugfs_exit_v3_hw(hisi_hba);
+
 	scsi_host_put(shost);
 }