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path: root/drivers/vfio/mdev/mdev_core.c
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Diffstat (limited to 'drivers/vfio/mdev/mdev_core.c')
-rw-r--r--drivers/vfio/mdev/mdev_core.c23
1 files changed, 3 insertions, 20 deletions
diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
index 5ca0efa5266b..7ec21c907397 100644
--- a/drivers/vfio/mdev/mdev_core.c
+++ b/drivers/vfio/mdev/mdev_core.c
@@ -45,7 +45,7 @@ static struct mdev_parent *__find_parent_device(struct device *dev)
return NULL;
}
-static void mdev_release_parent(struct kref *kref)
+void mdev_release_parent(struct kref *kref)
{
struct mdev_parent *parent = container_of(kref, struct mdev_parent,
ref);
@@ -55,20 +55,6 @@ static void mdev_release_parent(struct kref *kref)
put_device(dev);
}
-static struct mdev_parent *mdev_get_parent(struct mdev_parent *parent)
-{
- if (parent)
- kref_get(&parent->ref);
-
- return parent;
-}
-
-static void mdev_put_parent(struct mdev_parent *parent)
-{
- if (parent)
- kref_put(&parent->ref, mdev_release_parent);
-}
-
/* Caller must hold parent unreg_sem read or write lock */
static void mdev_device_remove_common(struct mdev_device *mdev)
{
@@ -243,12 +229,9 @@ int mdev_device_create(struct mdev_type *type, const guid_t *uuid)
{
int ret;
struct mdev_device *mdev, *tmp;
- struct mdev_parent *parent;
-
- parent = mdev_get_parent(type->parent);
- if (!parent)
- return -EINVAL;
+ struct mdev_parent *parent = type->parent;
+ mdev_get_parent(parent);
mutex_lock(&mdev_list_lock);
/* Check for duplicate */