linux-kernel - [PATCH -next] virtio-pci: fix error return code in vp_legacy

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Date:   Tue, 26 Oct 2021 21:47:25 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        <virtualization@...ts.linux-foundation.org>
CC:     <jasowang@...hat.com>, <mst@...hat.com>
Subject: [PATCH -next] virtio-pci: fix error return code in vp_legacy_probe()

Return error code if pci_iomap() fails in vp_legacy_probe()

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: c3ca8a3eeb54 ("virtio-pci: introduce legacy device module")
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/virtio/virtio_pci_legacy_dev.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_pci_legacy_dev.c b/drivers/virtio/virtio_pci_legacy_dev.c
index 9b97680dd02b..4ca3ef38d3bf 100644
--- a/drivers/virtio/virtio_pci_legacy_dev.c
+++ b/drivers/virtio/virtio_pci_legacy_dev.c
@@ -45,8 +45,10 @@ int vp_legacy_probe(struct virtio_pci_legacy_device *ldev)
 		return rc;
 
 	ldev->ioaddr = pci_iomap(pci_dev, 0, 0);
-	if (!ldev->ioaddr)
+	if (!ldev->ioaddr) {
+		rc = -ENOMEM;
 		goto err_iomap;
+	}
 
 	ldev->isr = ldev->ioaddr + VIRTIO_PCI_ISR;
 
-- 
2.25.1