drm/etnaviv: Fix off-by-one error in reloc checking

A relocation pointing to the last four bytes of a buffer can
legitimately happen in the case of small vertex buffers.

CC: stable@vger.kernel.org #4.9+
Signed-off-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index 5bd93169dac2..6463fc2c736f 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -270,8 +270,8 @@ static int submit_reloc(struct etnaviv_gem_submit *submit, void *stream,
                 if (ret)
                         return ret;
 
-                if (r->reloc_offset >= bo->obj->base.size - sizeof(*ptr)) {
-                        DRM_ERROR("relocation %u outside object", i);
+                if (r->reloc_offset > bo->obj->base.size - sizeof(*ptr)) {
+                        DRM_ERROR("relocation %u outside object\n", i);
                         return -EINVAL;
                 }