linux-kernel - [PATCH] scsi/3w-9xxx: Avoid disabling device if failing to enable it

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Message-Id: <20220829110115.38789-1-fantasquex@gmail.com>
Date:   Mon, 29 Aug 2022 19:01:15 +0800
From:   Letu Ren <fantasquex@...il.com>
To:     aradford@...il.com, jejb@...ux.ibm.com, martin.petersen@...cle.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Letu Ren <fantasquex@...il.com>, Zheyu Ma <zheyuma97@...il.com>
Subject: [PATCH] scsi/3w-9xxx: Avoid disabling device if failing to enable it

The original code will goto out_disable_device and `pci_disable_device`
if `pci_enable_device` fails. Kernel will generate a warning message
"3w-9xxx 0000:00:05.0: disabling already-disabled device". We shouldn't
disable a failed to enable device. A simple return is fine.

Reported-by: Zheyu Ma <zheyuma97@...il.com>
Signed-off-by: Letu Ren <fantasquex@...il.com>
---
 drivers/scsi/3w-9xxx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index cd823ff5deab..6cb9cca9565b 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -2006,7 +2006,7 @@ static int twa_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
 	retval = pci_enable_device(pdev);
 	if (retval) {
 		TW_PRINTK(host, TW_DRIVER, 0x34, "Failed to enable pci device");
-		goto out_disable_device;
+		return -ENODEV;
 	}
 
 	pci_set_master(pdev);
-- 
2.37.2