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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Letu Ren <fantasquex@gmail.com>, Zheyu Ma <zheyuma97@gmail.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Sasha Levin <sashal@kernel.org>,
	jejb@linux.ibm.com, linux-scsi@vger.kernel.org
Subject: [PATCH AUTOSEL 4.9 02/10] scsi: 3w-9xxx: Avoid disabling device if failing to enable it
Date: Wed, 12 Oct 2022 20:27:49 -0400	[thread overview]
Message-ID: <20221013002802.1896096-2-sashal@kernel.org> (raw)
In-Reply-To: <20221013002802.1896096-1-sashal@kernel.org>

From: Letu Ren <fantasquex@gmail.com>

[ Upstream commit 7eff437b5ee1309b34667844361c6bbb5c97df05 ]

The original code will "goto out_disable_device" and call
pci_disable_device() if pci_enable_device() fails. The kernel will generate
a warning message like "3w-9xxx 0000:00:05.0: disabling already-disabled
device".

We shouldn't disable a device that failed to be enabled. A simple return is
fine.

Link: https://lore.kernel.org/r/20220829110115.38789-1-fantasquex@gmail.com
Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Letu Ren <fantasquex@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 b78a2f3745f2..9c2edd9b66d1 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -2016,7 +2016,7 @@ 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);
-- 
2.35.1


           reply	other threads:[~2022-10-13  0:35 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <20221013002802.1896096-1-sashal@kernel.org>]

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