Commit 3935ec4a authored by Leo Li's avatar Leo Li Committed by Harry Wentland
Browse files

drm/dp: Use non-cyclic idr 



In preparation for adding aux devices for DP MST, make the IDR
non-cyclic. That way, hotplug cycling MST devices won't needlessly
increment the minor version index.

Signed-off-by: default avatarLeo Li <sunpeng.li@amd.com>
Reviewed-by: default avatarLyude Paul <lyude@redhat.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarHarry Wentland <harry.wentland@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190723232808.28128-2-sunpeng.li@amd.com
parent 0005cbda

drivers/gpu/drm/drm_dp_aux_dev.c

+1 −2
Original line number Diff line number Diff line
@@ -82,8 +82,7 @@ static struct drm_dp_aux_dev *alloc_drm_dp_aux_dev(struct drm_dp_aux *aux) 
	kref_init(&aux_dev->refcount);



	mutex_lock(&aux_idr_mutex);

	index = idr_alloc_cyclic(&aux_idr, aux_dev, 0, DRM_AUX_MINORS,

				 GFP_KERNEL);

	index = idr_alloc(&aux_idr, aux_dev, 0, DRM_AUX_MINORS, GFP_KERNEL);

	mutex_unlock(&aux_idr_mutex);

	if (index < 0) {

		kfree(aux_dev);