From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Baptiste Reynal <b.reynal@virtualopensystems.com>,
Alex Williamson <alex.williamson@redhat.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
kvm@vger.kernel.org, devicetree@vger.kernel.org,
linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 1/2] vfio: platform: Fix reset module leak in error path
Date: Tue, 13 Feb 2018 17:36:54 +0100 [thread overview]
Message-ID: <1518539815-13774-2-git-send-email-geert+renesas@glider.be> (raw)
In-Reply-To: <1518539815-13774-1-git-send-email-geert+renesas@glider.be>
If the IOMMU group setup fails, the reset module is not released.
Fixes: b5add544d677d363 ("vfio, platform: make reset driver a requirement by default")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/vfio/platform/vfio_platform_common.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
index 35469af87f88678e..b60bb5326668498c 100644
--- a/drivers/vfio/platform/vfio_platform_common.c
+++ b/drivers/vfio/platform/vfio_platform_common.c
@@ -680,18 +680,23 @@ int vfio_platform_probe_common(struct vfio_platform_device *vdev,
group = vfio_iommu_group_get(dev);
if (!group) {
pr_err("VFIO: No IOMMU group for device %s\n", vdev->name);
- return -EINVAL;
+ ret = -EINVAL;
+ goto put_reset;
}
ret = vfio_add_group_dev(dev, &vfio_platform_ops, vdev);
- if (ret) {
- vfio_iommu_group_put(group, dev);
- return ret;
- }
+ if (ret)
+ goto put_iommu;
mutex_init(&vdev->igate);
return 0;
+
+put_iommu:
+ vfio_iommu_group_put(group, dev);
+put_reset:
+ vfio_platform_put_reset(vdev);
+ return ret;
}
EXPORT_SYMBOL_GPL(vfio_platform_probe_common);
--
2.7.4
next prev parent reply other threads:[~2018-02-13 16:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-13 16:36 [PATCH 0/2] vfio: platform: Improve reset support Geert Uytterhoeven
2018-02-13 16:36 ` Geert Uytterhoeven [this message]
2018-02-14 8:36 ` [PATCH 1/2] vfio: platform: Fix reset module leak in error path Auger Eric
2018-02-14 9:32 ` Geert Uytterhoeven
2018-02-21 16:07 ` Geert Uytterhoeven
2018-02-26 9:47 ` Auger Eric
2018-02-26 9:49 ` Auger Eric
2018-02-13 16:36 ` [PATCH 2/2] vfio: platform: Add generic DT reset support Geert Uytterhoeven
2018-02-14 9:09 ` Auger Eric
2018-02-14 9:43 ` Geert Uytterhoeven
2018-02-14 10:11 ` Auger Eric
2018-02-21 16:12 ` Geert Uytterhoeven
2018-02-21 16:51 ` Philipp Zabel
2018-02-22 8:50 ` Geert Uytterhoeven
2018-02-22 9:36 ` Philipp Zabel
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