Commit f4e65efc authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/ltc: protect clearing of comptags with mutex 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
parent 64373e4b

drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c

+2 −0
Original line number Diff line number Diff line
@@ -47,8 +47,10 @@ nvkm_ltc_tags_clear(struct nvkm_ltc *ltc, u32 first, u32 count) 


	BUG_ON((first > limit) || (limit >= ltc->num_tags));



	mutex_lock(&ltc->subdev.mutex);

	ltc->func->cbc_clear(ltc, first, limit);

	ltc->func->cbc_wait(ltc);

	mutex_unlock(&ltc->subdev.mutex);

}



int