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Date: Sat, 6 Dec 2014 00:28:01 +0300 From: Alexey Khoroshilov <khoroshilov@...ras.ru> To: "Michael S. Tsirkin" <mst@...hat.com> Cc: Alexey Khoroshilov <khoroshilov@...ras.ru>, "Hans J. Koch" <hjk@...sjkoch.de>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, kvm@...r.kernel.org, linux-kernel@...r.kernel.org, ldv-project@...uxtesting.org Subject: [PATCH] uio/uio_pci_generic: don't return zero on failure path in probe() If uio_register_device() fails in probe(), it breaks off initialization, deallocates all resources, but returns zero. The patch adds proper error code propagation. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@...ras.ru> --- drivers/uio/uio_pci_generic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/uio/uio_pci_generic.c b/drivers/uio/uio_pci_generic.c index 077ae12269ce..d0b508b68f3c 100644 --- a/drivers/uio/uio_pci_generic.c +++ b/drivers/uio/uio_pci_generic.c @@ -91,7 +91,8 @@ static int probe(struct pci_dev *pdev, gdev->info.handler = irqhandler; gdev->pdev = pdev; - if (uio_register_device(&pdev->dev, &gdev->info)) + err = uio_register_device(&pdev->dev, &gdev->info); + if (err) goto err_register; pci_set_drvdata(pdev, gdev); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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