4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Eric Anholt <eric@xxxxxxxxxx>
commit 6b8ac63847bc2f958dd93c09edc941a0118992d9 upstream.
By failing to set the errno, we'd continue on to trying to set up the
RCL, and then oops on trying to dereference the tile_bo that binning
validation should have set up.
Reported-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Eric Anholt <eric@xxxxxxxxxx>
Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.")
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/vc4/vc4_gem.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -601,6 +601,7 @@ vc4_get_bcl(struct drm_device *dev, stru
sizeof(struct vc4_shader_state)) ||
temp_size < exec_size) {
DRM_ERROR("overflow in exec arguments\n");
+ ret = -EINVAL;
goto fail;
}
--
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