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* [PATCH] vfio: Fix memory leaks in vfio_create_group()
@ 2022-06-29  2:05 Lei Rao
  2022-06-29  2:20 ` Tian, Kevin
  0 siblings, 1 reply; 2+ messages in thread
From: Lei Rao @ 2022-06-29  2:05 UTC (permalink / raw)
  To: alex.williamson, cohuck, kevin.tian, kvm, linux-kernel; +Cc: Lei Rao

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

Signed-off-by: Lei Rao <lei.rao@intel.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


^ permalink raw reply related	[flat|nested] 2+ messages in thread

* RE: [PATCH] vfio: Fix memory leaks in vfio_create_group()
  2022-06-29  2:05 [PATCH] vfio: Fix memory leaks in vfio_create_group() Lei Rao
@ 2022-06-29  2:20 ` Tian, Kevin
  0 siblings, 0 replies; 2+ messages in thread
From: Tian, Kevin @ 2022-06-29  2:20 UTC (permalink / raw)
  To: Rao, Lei, alex.williamson, cohuck, kvm, linux-kernel

> From: Rao, Lei <lei.rao@intel.com>
> Sent: Wednesday, June 29, 2022 10:05 AM
> 
> If an error occurs after vfio_group_alloc(), we need to release the
> group.
> 
> Signed-off-by: Lei Rao <lei.rao@intel.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);

this is called automatically by put_device().

>  	return ret;
>  }
> 
> --
> 2.32.0


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2022-06-29  2:21 UTC | newest]

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2022-06-29  2:05 [PATCH] vfio: Fix memory leaks in vfio_create_group() Lei Rao
2022-06-29  2:20 ` Tian, Kevin

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