switch vfio_group_set_container() to fget_light()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 17830c9c7cc623b7b26cdac7568aca508f7251e7..91bcd97d30616a302707b777634a859bc83b93e8 100644 (file)
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1017,18 +1017,18 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd)
        struct file *filep;
        struct vfio_container *container;
        struct vfio_iommu_driver *driver;
-       int ret = 0;
+       int ret = 0, fput_needed;
 
        if (atomic_read(&group->container_users))
                return -EINVAL;
 
-       filep = fget(container_fd);
+       filep = fget_light(container_fd, &fput_needed);
        if (!filep)
                return -EBADF;
 
        /* Sanity check, is this really our fd? */
        if (filep->f_op != &vfio_fops) {
-               fput(filep);
+               fput_light(filep, fput_needed);
                return -EINVAL;
        }
 
@@ -1054,7 +1054,7 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd)
 
 unlock_out:
        mutex_unlock(&container->group_lock);
-       fput(filep);
+       fput_light(filep, fput_needed);
 
        return ret;
 }