When calling debugfs_lookup() the result must have dput() called on it, otherwise the memory will leak over time. To make things simpler, just call debugfs_lookup_and_remove() instead which handles all of the logic at once.
Cc: Zhenyu Wang <[email protected]> Cc: Zhi Wang <[email protected]> Cc: Jani Nikula <[email protected]> Cc: Joonas Lahtinen <[email protected]> Cc: Rodrigo Vivi <[email protected]> Cc: Tvrtko Ursulin <[email protected]> Cc: David Airlie <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 8ae7039b3683..de675d799c7d 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -699,7 +699,7 @@ static void intel_vgpu_close_device(struct vfio_device *vfio_dev) clear_bit(INTEL_VGPU_STATUS_ATTACHED, vgpu->status); - debugfs_remove(debugfs_lookup(KVMGT_DEBUGFS_FILENAME, vgpu->debugfs)); + debugfs_lookup_and_remove(KVMGT_DEBUGFS_FILENAME, vgpu->debugfs); kvm_page_track_unregister_notifier(vgpu->vfio_device.kvm, &vgpu->track_node); -- 2.39.1
