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path: root/drivers/gpu/drm/nouveau/nvkm/engine/disp/basenv50.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/basenv50.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/disp/basenv50.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/basenv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/basenv50.c
index 83f152300ec0..f1d6b820d482 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/basenv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/basenv50.c
@@ -22,6 +22,7 @@
* Authors: Ben Skeggs
*/
#include "dmacnv50.h"
+#include "head.h"
#include "rootnv50.h"
#include <core/client.h>
@@ -50,7 +51,7 @@ nv50_disp_base_new(const struct nv50_disp_dmac_func *func,
nvif_ioctl(parent, "create disp base channel dma vers %d "
"pushbuf %016llx head %d\n",
args->v0.version, args->v0.pushbuf, args->v0.head);
- if (args->v0.head > disp->base.head.nr)
+ if (!nvkm_head_find(&disp->base, args->v0.head))
return -EINVAL;
push = args->v0.pushbuf;
head = args->v0.head;