Nouveau - Jul 2018 - [PATCH] drm/nouveau/gem: off by one bugs in nouveau_gem_pushbuf_reloc_apply()

The bo array has req->nr_buffers elements so the > should be >= so we
don't read beyond the end of the array.

Fixes: a1606a9596e5 ("drm/nouveau: new gem pushbuf interface, bump to
0.0.16")
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c
b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 300daee74209..e6ccafcb9c41 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -616,7 +616,7 @@ nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
 		struct nouveau_bo *nvbo;
 		uint32_t data;
 
-		if (unlikely(r->bo_index > req->nr_buffers)) {
+		if (unlikely(r->bo_index >= req->nr_buffers)) {
 			NV_PRINTK(err, cli, "reloc bo index invalid\n");
 			ret = -EINVAL;
 			break;
@@ -626,7 +626,7 @@ nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
 		if (b->presumed.valid)
 			continue;
 
-		if (unlikely(r->reloc_bo_index > req->nr_buffers)) {
+		if (unlikely(r->reloc_bo_index >= req->nr_buffers)) {
 			NV_PRINTK(err, cli, "reloc container bo index invalid\n");
 			ret = -EINVAL;
 			break;