Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 3693d544 authored by Samuel Pitoiset's avatar Samuel Pitoiset Committed by Ben Skeggs
Browse files

drm/nouveau/pm: prevent freeing the wrong engine context 



This fixes a crash when multiple PM engine contexts are created.

Signed-off-by: default avatarSamuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: default avatarMartin Peres <martin.peres@free.fr>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 4a8cf451

drivers/gpu/drm/nouveau/nvkm/engine/pm/base.c

+5 −2
Original line number Diff line number Diff line
@@ -332,8 +332,11 @@ static void 
nvkm_perfctx_dtor(struct nvkm_object *object)

{

	struct nvkm_pm *ppm = (void *)object->engine;

	struct nvkm_perfctx *ctx = (void *)object;



	mutex_lock(&nv_subdev(ppm)->mutex);

	nvkm_engctx_destroy(&ppm->context->base);

	nvkm_engctx_destroy(&ctx->base);

	if (ppm->context == ctx)

		ppm->context = NULL;

	mutex_unlock(&nv_subdev(ppm)->mutex);

}