linux-kernel - [PATCH 5.12 060/127] uio/uio_pci_generic: fix return value changed in refactoring

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Date:   Mon, 24 May 2021 17:26:17 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, "Michael S. Tsirkin" <mst@...hat.com>,
        Martin Ågren <martin.agren@...il.com>
Subject: [PATCH 5.12 060/127] uio/uio_pci_generic: fix return value changed in refactoring

From: Martin Ågren <martin.agren@...il.com>

commit 156ed0215ef365604f2382d5164c36d3a1cfd98f upstream.

Commit ef84928cff58 ("uio/uio_pci_generic: use device-managed function
equivalents") was able to simplify various error paths thanks to no
longer having to clean up on the way out. Some error paths were dropped,
others were simplified. In one of those simplifications, the return
value was accidentally changed from -ENODEV to -ENOMEM. Restore the old
return value.

Fixes: ef84928cff58 ("uio/uio_pci_generic: use device-managed function equivalents")
Cc: stable <stable@...r.kernel.org>
Acked-by: Michael S. Tsirkin <mst@...hat.com>
Signed-off-by: Martin Ågren <martin.agren@...il.com>
Link: https://lore.kernel.org/r/20210422192240.1136373-1-martin.agren@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/uio/uio_pci_generic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/uio/uio_pci_generic.c
+++ b/drivers/uio/uio_pci_generic.c
@@ -82,7 +82,7 @@ static int probe(struct pci_dev *pdev,
 	}
 
 	if (pdev->irq && !pci_intx_mask_supported(pdev))
-		return -ENOMEM;
+		return -ENODEV;
 
 	gdev = devm_kzalloc(&pdev->dev, sizeof(struct uio_pci_generic_dev), GFP_KERNEL);
 	if (!gdev)