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This pull request brings in a few little error checking fixes and one

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slow memory leak fix.
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Merge tag 'drm-vc4-fixes-2017-01-23' of https://github.com/anholt/linux into drm-fixes

This pull request brings in a few little error checking fixes and one
slow memory leak fix.

* tag 'drm-vc4-fixes-2017-01-23' of https://github.com/anholt/linux:
  drm/vc4: Return -EINVAL on the overflow checks failing.
  drm/vc4: Fix an integer overflow in temporary allocation layout.
  drm/vc4: fix a bounds check
  drm/vc4: Fix memory leak of the CRTC state.
This commit is contained in:
Dave Airlie 2017-01-27 10:33:39 +10:00
commit e996598b28
3 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/vc4/vc4_crtc.c
View File

@ -839,7 +839,7 @@ static void vc4_crtc_destroy_state(struct drm_crtc *crtc,
}
__drm_atomic_helper_crtc_destroy_state(state);
drm_atomic_helper_crtc_destroy_state(crtc, state);
}
static const struct drm_crtc_funcs vc4_crtc_funcs = {

4
drivers/gpu/drm/vc4/vc4_gem.c
View File

@ -594,12 +594,14 @@ vc4_get_bcl(struct drm_device *dev, struct vc4_exec_info *exec)
args->shader_rec_count);
struct vc4_bo *bo;
if (uniforms_offset < shader_rec_offset ||
if (shader_rec_offset < args->bin_cl_size ||
uniforms_offset < shader_rec_offset ||
exec_size < uniforms_offset ||
args->shader_rec_count >= (UINT_MAX /
sizeof(struct vc4_shader_state)) ||
temp_size < exec_size) {
DRM_ERROR("overflow in exec arguments\n");
ret = -EINVAL;
goto fail;
}

2
drivers/gpu/drm/vc4/vc4_render_cl.c
View File

@ -461,7 +461,7 @@ static int vc4_rcl_surface_setup(struct vc4_exec_info *exec,
}
ret = vc4_full_res_bounds_check(exec, *obj, surf);
if (!ret)
if (ret)
return ret;
return 0;