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Commit 6d2cd3ce authored by Al Viro's avatar Al Viro
Browse files

vfio: get rid of open-coding kref_put_mutex 



Acked-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 8ad5db8a

drivers/vfio/vfio.c

+2 −7
Original line number Diff line number Diff line
@@ -264,6 +264,7 @@ static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group) 
	return group;

}



/* called with vfio.group_lock held */

static void vfio_group_release(struct kref *kref)

{

	struct vfio_group *group = container_of(kref, struct vfio_group, kref);
@@ -287,13 +288,7 @@ static void vfio_group_release(struct kref *kref) 


static void vfio_group_put(struct vfio_group *group)

{

	mutex_lock(&vfio.group_lock);

	/*

	 * Release needs to unlock to unregister the notifier, so only

	 * unlock if not released.

	 */

	if (!kref_put(&group->kref, vfio_group_release))

		mutex_unlock(&vfio.group_lock);

	kref_put_mutex(&group->kref, vfio_group_release, &vfio.group_lock);

}



/* Assume group_lock or group reference is held */