linux-kernel - [PATCH 3.16 007/204] scsi: lpfc: Don't return internal MBXERR

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Message-ID: <lsq.1514480744.880739486@decadent.org.uk>
Date:   Thu, 28 Dec 2017 17:05:44 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "Dick Kennedy" <dick.kennedy@...adcom.com>,
        "Johannes Thumshirn" <jthumshirn@...e.de>,
        "Stefano Brivio" <sbrivio@...hat.com>
Subject: [PATCH 3.16 007/204] scsi: lpfc: Don't return internal
 MBXERR_ERROR code from probe function

3.16.52-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Stefano Brivio <sbrivio@...hat.com>

commit 5c756065e47dc3e84b00577bd109f0a8e69903d7 upstream.

Internal error codes happen to be positive, thus the PCI driver core
won't treat them as failure, but we do. This would cause a crash later
on as lpfc_pci_remove_one() is called (e.g. as shutdown function).

Fixes: 6d368e532168 ("[SCSI] lpfc 8.3.24: Add resource extent support")
Signed-off-by: Stefano Brivio <sbrivio@...hat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@...e.de>
Acked-by: Dick Kennedy <dick.kennedy@...adcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
[bwh: Backported to 3.16: adjust context, indentation]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/scsi/lpfc/lpfc_init.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -5242,6 +5242,7 @@ lpfc_sli4_driver_resource_setup(struct l
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"2999 Unsupported SLI4 Parameters "
 				"Extents and RPI headers enabled.\n");
+			rc = -EIO;
 			goto out_free_bsmbx;
 		}
 	}