linux-kernel - [PATCH] vfio: Fix memory leaks in vfio_create

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Date:   Wed, 29 Jun 2022 10:05:00 +0800
From:   Lei Rao <lei.rao@...el.com>
To:     alex.williamson@...hat.com, cohuck@...hat.com,
        kevin.tian@...el.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Lei Rao <lei.rao@...el.com>
Subject: [PATCH] vfio: Fix memory leaks in vfio_create_group()

If an error occurs after vfio_group_alloc(), we need to release the
group.

Signed-off-by: Lei Rao <lei.rao@...el.com>
---
 drivers/vfio/vfio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 61e71c1154be..2460aec44a6d 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -414,6 +414,7 @@ static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group,
 	mutex_unlock(&vfio.group_lock);
 err_put:
 	put_device(&group->dev);
+	vfio_group_release(&group->dev);
 	return ret;
 }
 
-- 
2.32.0